里戈莱托（卢奇亚诺·帕瓦罗蒂 Luciano Pavarotti 饰）天生矮小丑陋，是宫廷里博人一笑的弄臣。曼图亚公爵（Ingvar Wixell 饰）仗着自己生得英俊潇洒，四处侮辱玩弄女性，里戈莱托为了上位，整天在他身边为他出谋划策助纣为虐。久而久之，大家对于曼图亚公爵的恶行忍无可忍，决定设计报复。
这一次公爵看上的，是里戈莱托年轻纯洁的小女儿吉尔达（爱狄塔·格鲁贝罗娃 Edita Gruberova 饰），对此并不知情的里戈莱托亲手将自己的女儿送到了荒淫无度的公爵手中。当里戈莱托发现了真相后悲痛欲绝，决心杀死公爵为自己的女儿报仇，哪知道当他打开装有公爵尸体的麻袋后，发现里面的人竟然是吉尔达。

Historical context
A crowded scene with many soldiers and horses, and much smoke. Some soldiers lie dead or wounded. In the distance, beyond a short line of trees, is a tall church tower.
According to the libretto, the action of Tosca occurs in Rome in June 1800. Sardou, in his play, dates it more precisely; La Tosca takes place in the afternoon, evening, and early morning of 17 and 18 June 1800.
Italy had long been divided into a number of small states, with the Pope in Rome ruling the Papal States in Central Italy. Following the French Revolution, a French army under Napoleon invaded Italy in 1796, entering Rome almost unopposed on 11 February 1798 and establishing a republic there. Pope Pius VI was taken prisoner, and was sent into exile on February 20, 1798. (Pius VI would die in exile in 1799, and his successor, Pius VII, who was elected in Venice on 14 March 1800, would not enter Rome until July 3. There is thus neither a Pope nor papal government in Rome during the days depicted in the opera.) The new republic was ruled by seven consuls; in the opera this is the office formerly held by Angelotti, whose character may be based on the real-life consul Liborio Angelucci. In September 1799 the French, who had protected the republic, withdrew from Rome. As they left, troops of the Kingdom of Naples occupied the city.
In May 1800 Napoleon, by then the undisputed leader of France, brought his troops across the Alps to Italy once again. On 14 June his army met the Austrian forces at the Battle of Marengo (near Alessandria). Austrian troops were initially successful; by mid-morning they were in control of the field of battle. Their commander, Michael von Melas, sent this news south towards Rome. However, fresh French troops arrived in late afternoon, and Napoleon attacked the tired Austrians. As Melas retreated in disarray with the remains of his army, he sent a second courier south with the revised message. The Neapolitans abandoned Rome, and the city spent the next fourteen years under French domination.
Act 1
Inside the church of Sant'Andrea della Valle
Scene depicting a church interior with high stained-glass windows and heavy ornamental columns. The central figure is a high dignatory around whom several figures are kneeling, while in the background can be seen the tall pikes of the Swiss Guard.
Cesare Angelotti, former consul of the Roman Republic and now an escaped political prisoner, runs into the church and hides in the Attavanti private chapel – his sister, the Marchesa Attavanti, has left a key to the chapel hidden at the feet of the statue of the Madonna. The elderly Sacristan enters and begins cleaning. The Sacristan kneels in prayer as the Angelus sounds.
The painter Mario Cavaradossi arrives to continue work on his picture of Mary Magdalene. The Sacristan identifies a likeness between the portrait and a blonde-haired woman who has been visiting the church recently (unknown to him, it is Angelotti's sister the Marchesa). Cavaradossi describes the "hidden harmony" ("Recondita armonia") in the contrast between the blonde beauty of his painting and his dark-haired lover, the singer Floria Tosca. The Sacristan mumbles his disapproval before leaving.
Angelotti emerges and tells Cavaradossi, an old friend who has republican sympathies, that he is being pursued by the Chief of Police, Baron Scarpia. Cavaradossi promises to assist him after nightfall. Tosca's voice is heard, calling to Cavaradossi. Cavaradossi gives Angelotti his basket of food and Angelotti hurriedly returns to his hiding place.
Tosca enters and suspiciously asks Cavaradossi what he has been doing – she thinks that he has been talking to another woman. Cavaradossi reassures her and Tosca tries to persuade him to take her to his villa that evening: "Non la sospiri, la nostra casetta" ("Do you not long for our little cottage"). She then expresses jealousy over the woman in the painting, whom she recognises as the Marchesa Attavanti. Cavaradossi explains the likeness; he has merely observed the Marchesa at prayer in the church. He reassures Tosca of his fidelity and asks her what eyes could be more beautiful than her own: "Qual'occhio al mondo" ("What eyes in the world").
After Tosca has left, Angelotti reappears and discusses with the painter his plan to flee disguised as a woman, using clothes left in the chapel by his sister. Cavaradossi gives Angelotti a key to his villa, suggesting that he hide in a disused well in the garden. The sound of a cannon signals that Angelotti's escape has been discovered. He and Cavaradossi hasten out of the church.
The Sacristan re-enters with choristers, celebrating the news that Napoleon has apparently been defeated at Marengo. The celebrations cease abruptly with the entry of Scarpia, his henchman Spoletta and several police agents. They have heard that Angelotti has sought refuge in the church. Scarpia orders a search, and the empty food basket and a fan bearing the Attavanti coat of arms are found in the chapel. Scarpia questions the Sacristan, and his suspicions are aroused further when he learns that Cavaradossi has been in the church; Scarpia mistrusts the painter, and believes him complicit in Angelotti's escape.
When Tosca arrives looking for her lover, Scarpia artfully arouses her jealous instincts by implying a relationship between the painter and the Marchesa Attavanti. He draws Tosca's attention to the fan and suggests that someone must have surprised the lovers in the chapel. Tosca falls for his deceit; enraged, she rushes off to confront Cavaradossi. Scarpia orders Spoletta and his agents to follow her, assuming she will lead them to Cavaradossi and Angelotti. He privately gloats as he reveals his intentions to possess Tosca and execute Cavaradossi. A procession enters the church singing the Te Deum; exclaiming 'Tosca, you make me forget even God!', Scarpia joins the chorus in the prayer.
Act 2
The body of a man lies supine, with a woman, crucifix in hand, kneeling over him. A candle is placed to each side of his head.
Scarpia's apartment in the Palazzo Farnese, that evening
Scarpia, at supper, sends a note to Tosca asking her to come to his apartment, anticipating that two of his goals will soon be fulfilled at once. His agent, Spoletta, arrives to report that Angelotti remains at large, but Cavaradossi has been arrested for questioning. He is brought in, and an interrogation ensues. As the painter steadfastly denies knowing anything about Angelotti's escape, Tosca's voice is heard singing a celebratory cantata elsewhere in the Palace.
She enters the apartment in time to see Cavaradossi being escorted to an antechamber. All he has time to say is that she mustn't tell them anything. Scarpia then claims she can save her lover from indescribable pain if she reveals Angelotti's hiding place. She resists, but the sound of screams coming through the door eventually breaks her down, and she tells Scarpia to search the well in the garden of Cavaradossi's villa.
Scarpia orders his torturers to cease, and the bloodied painter is dragged back in. He's devastated to discover that Tosca has betrayed his friend. Sciarrone, another agent, then enters with news: there was an upset on the battlefield at Marengo, and the French are marching on Rome. Cavaradossi, unable to contain himself, gloats to Scarpia that his rule of terror will soon be at an end. This is enough for the police to consider him guilty, and they haul him away to be shot.
Scarpia, now alone with Tosca, proposes a bargain: if she gives herself to him, Cavaradossi will be freed. She is revolted, and repeatedly rejects his advances, but she hears the drums outside announcing an execution. As Scarpia awaits her decision, she prays, asking why God has abandoned her in her hour of need: "Vissi d'arte" ("I lived for art"). She tries to offer money, but Scarpia isn't interested in that kind of bribe: he wants Tosca herself.
Spoletta returns with the news that Angelotti has killed himself upon discovery, and that everything is in place for Cavaradossi's execution. Scarpia hesitates to give the order, looking to Tosca, and despairingly she agrees to submit to him. He tells Spoletta to arrange a mock execution, both men repeating that it will be "as we did with Count Palmieri," and Spoletta exits.
Tosca insists that Scarpia must provide safe-conduct out of Rome for herself and Cavaradossi. He easily agrees to this and heads to his desk. While he's drafting the document, she quietly takes a knife from the supper table. Scarpia triumphantly strides toward Tosca. When he begins to embrace her, she stabs him, crying "this is Tosca's kiss!" Once she's certain he's dead, she ruefully says "now I forgive him." She removes the safe-conduct from his pocket, lights candles in a gesture of piety, and places a crucifix on the body before leaving.
Act 3
The upper parts of the Castel Sant'Angelo, early the following morning
Roman panorama showing, centre, an arched bridge over a river with a domed building in the distance. To the right of the bridge is a large circular fortress.
A shepherd boy is heard offstage singing (in Romanesco dialect) "Io de' sospiri" ("I give you sighs") as church bells sound for matins. The guards lead Cavaradossi in and inform him that he has one hour to live. He declines to see a priest, but asks permission to write a letter to Tosca. He begins to write, but is soon overwhelmed by memories: "E lucevan le stelle" ("And the stars shone").
Tosca enters and shows him the safe-conduct pass she's obtained, adding that she has killed Scarpia and that the imminent execution is a sham. Cavaradossi must feign death, after which they can flee together before Scarpia's body is discovered. Cavaradossi is awestruck by his gentle lover's courage: "O dolci mani" ("Oh sweet hands"). The pair ecstatically imagines the life they will share, far from Rome. Tosca then anxiously coaches Cavaradossi on how to play dead when the firing squad shoots at him with blanks. He giddily promises he'll fall "like Tosca in the theatre."
Cavaradossi is led away, and Tosca watches with increasing impatience as the execution is prepared. The men fire, Cavaradossi falls, and Tosca exclaims "Ecco un artista!" ("What an actor!"). When the soldiers have all left, she hurries towards Cavaradossi, only to find that Scarpia betrayed her: the bullets were real. Heartbroken, she clasps her lover's lifeless body and weeps.
The voices of Spoletta, Sciarrone, and the soldiers are heard, shouting that Scarpia is dead and Tosca has killed him. As the men rush in, Tosca rises, evades their clutches, and runs to the parapet. Crying "O Scarpia, Avanti a Dio!" ("O Scarpia, we meet before God!"), she flings herself over the edge to her death.

Place: Paris
Time: Around 1830
Act 1
In the four bohemians' garret (Christmas Eve)
Marcello is painting while Rodolfo gazes out of the window. They complain of the cold. In order to keep warm, they burn the manuscript of Rodolfo's drama. Colline, the philosopher, enters shivering and disgruntled at not having been able to pawn some books. Schaunard, the musician of the group, arrives with food, wine and cigars. He explains the source of his riches: a job with an eccentric English gentleman, who ordered him to play his violin to a parrot until it died. The others hardly listen to his tale as they set up the table to eat and drink. Schaunard interrupts, telling them that they must save the food for the days ahead: tonight they will all celebrate his good fortune by dining at Cafe Momus, and he will pay.
The friends are interrupted by Benoît, the landlord, who arrives to collect the rent. They flatter him and ply him with wine. In his drunkenness, he begins to boast of his amorous adventures, but when he also reveals that he is married, they thrust him from the room—without the rent payment—in comic moral indignation. The rent money is divided for their evening out in the Quartier Latin.
Marcello, Schaunard and Colline go out, but Rodolfo remains alone for a moment in order to finish an article he is writing, promising to join his friends soon. There is a knock at the door. It is a girl who lives in another room in the building. Her candle has blown out, and she has no matches; she asks Rodolfo to light it. She is briefly overcome with faintness, and Rodolfo helps her to a chair and offers her a glass of wine. She thanks him. After a few minutes, she says that she is better and must go. But as she turns to leave, she realizes that she has lost her key.
Her candle goes out in the draught and Rodolfo's candle goes out too; the pair stumble in the dark. Rodolfo, eager to spend time with the girl, to whom he is already attracted, finds the key and pockets it, feigning innocence. He takes her cold hand (Che gelida manina—"What a cold little hand") and tells her of his life as a poet, then asks her to tell him more about her life. The girl says her name is Mimì (Sì, mi chiamano Mimì—"Yes, they call me Mimì"), and describes her simple life as an embroiderer. Impatiently, the waiting friends call Rodolfo. He answers and turns to see Mimì bathed in moonlight (duet, Rodolfo and Mimì: O soave fanciulla—"Oh lovely girl"). They realize that they have fallen in love. Rodolfo suggests remaining at home with Mimì, but she decides to accompany him to the Cafe Momus. As they leave, they sing of their newfound love.
Act 2
Quartier Latin (same evening)
A great crowd, including children, has gathered with street sellers announcing their wares (chorus: Aranci, datteri! Caldi i marroni!—"Oranges, dates! Hot chestnuts!"). The friends arrive; Rodolfo buys Mimì a bonnet from a vendor, while Colline buys a coat and Schaunard a horn. Parisians gossip with friends and bargain with the vendors; the children of the streets clamor to see the wares of Parpignol, the toy seller. The friends enter the Cafe Momus.
As the men and Mimì dine at the cafe, Musetta, formerly Marcello's sweetheart, arrives with her rich (and elderly) government minister admirer, Alcindoro, whom she is tormenting. It is clear she has tired of him. To the delight of the Parisians and the embarrassment of her patron, she sings a risqué song (Musetta's waltz: Quando m'en vo'—"When I go along"), hoping to reclaim Marcello's attention. The ploy works; at the same time, Mimì recognizes that Musetta truly loves Marcello. To be rid of Alcindoro for a bit, Musetta pretends to be suffering from a tight shoe and sends him to the shoemaker to get her shoe mended. Alcindoro leaves, and Musetta and Marcello fall rapturously into each other's arms.
The friends are presented with their bill. However, Schaunard's purse has gone missing and no one else has enough money to pay. The sly Musetta has the entire bill charged to Alcindoro. The sound of a military band is heard, and the friends leave. Alcindoro returns with the repaired shoe seeking Musetta. The waiter hands him the bill and, dumbfounded, Alcindoro sinks into a chair.
Act 3
At the toll gate at the Barrière d'Enfer (late February)
Peddlers pass through the barriers and enter the city. Mimì appears, coughing violently. She tries to find Marcello, who is currently living in a little tavern where he paints signs for the innkeeper. She tells him of her hard life with Rodolfo, who abandoned her the night before, and of Rodolfo's terrible jealousy (O buon Marcello, aiuto!—"Oh, good Marcello, help me!"). Marcello tells her that Rodolfo is asleep inside, and expresses concern about Mimì's cough. Rodolfo wakes up and comes out looking for Marcello. Mimì hides and overhears Rodolfo first telling Marcello that he left Mimì because of her coquettishness, but finally confessing that his jealousy is a sham: he fears she is slowly being consumed by a deadly illness (most likely tuberculosis, known by the catchall name "consumption" in the nineteenth century). Rodolfo, in his poverty, can do little to help Mimì and hopes that his pretended unkindness will inspire her to seek another, wealthier suitor (Marcello, finalmente—"Marcello, finally").
Out of kindness towards Mimì, Marcello tries to silence him, but she has already heard all. Her weeping and coughing reveal her presence, and Rodolfo hurries to her. Musetta's laughter is heard and Marcello goes to find out what has happened. Mimì tells Rodolfo that she is leaving him, and asks that they separate amicably (Mimì: Donde lieta uscì—"From here she happily left"); but their love for one another is too strong for the pair to part. As a compromise, they agree to remain together until the spring, when the world is coming to life again and no one feels truly alone. Meanwhile, Marcello has found Musetta, and the couple quarrel fiercely about Musetta's flirtatiousness: an antithetical counterpoint to the other pair's reconciliation (quartet: Mimì, Rodolfo, Musetta, Marcello: Addio dolce svegliare alla mattina!—"Goodbye, sweet awakening in the morning!").
Act 4
Back in the garret (some months later)
Marcello and Rodolfo are trying to work, though they are primarily talking about their girlfriends, who have left them and found wealthy lovers. Rodolfo has seen Musetta in a fine carriage and Marcello has seen Mimì dressed like a queen. The men both express their nostalgia (duet: O Mimì, tu più non torni—"O Mimì, will you not return?"). Schaunard and Colline arrive with a very frugal dinner and all parody eating a plentiful banquet, dance together and sing, before Schaunard and Colline engage in a mock duel.
Musetta suddenly appears; Mimì, who took up with a wealthy viscount after leaving Rodolfo in the spring, has left her patron. Musetta found her that day in the street, severely weakened by her illness, and Mimì begged Musetta to bring her to Rodolfo. Mimì, haggard and pale, is assisted onto a bed. Briefly, she feels as though she is recovering. Musetta and Marcello leave to sell Musetta's earrings in order to buy medicine, and Colline leaves to pawn his overcoat (Vecchia zimarra—"Old coat"). Schaunard leaves with Colline to give Mimì and Rodolfo some time together. Mimì tells Rodolfo that her love for him is her whole life (aria/duet, Mimì and Rodolfo: Sono andati?—"Have they gone?").
To Mimì's delight, Rodolfo presents her with the pink bonnet he bought her, which he has kept as a souvenir of their love. They remember past happiness and their first meeting—the candles, the lost key. Suddenly, Mimì is overwhelmed by a coughing fit. The others return, with a gift of a muff to warm Mimì's hands and some medicine. Mimì gently thanks Rodolfo for the muff, which she believes is a present from him, reassures him that she is better and falls asleep. Musetta prays. Schaunard discovers that Mimì has died. Rodolfo rushes to the bed, calling Mimì's name in anguish, weeping helplessly as the curtain falls.