Unni Thampuran gets falsely accused of raping and murdering a young girl. However, things take a turn when his lawyer, Aniyan Kuruvilla, works hard to defend him.

Basheer (Jagathy) is rescued by a cargo ship while lost at sea. Basheer has had a partial memory loss and he struggles to find out what has happened to him. The captain of the ship (Lalu Alex) tries to get him back to land, but he runs into several legal troubles due to the lack of documents with Basheer to prove his identity. Bhaskara Pillai (Mamootty), a lawyer decides to help out Basheer seeing his plight. The plot thickens when there's an attempted murder on Basheer.

Sister Amala (Sangita), a nun is found dead in the well of the convent where she was staying. The police discover that she was murdered. Idamattom Palackal Easow Panickar and his team find out the truth behind Sr. Amala's murder.

A group of high-ranking political officials are on a trip when their bus is hijacked by a group of terrorists headed by Charles (Lalu Alex). They demand the release of their old colleagues languishing in prison in exchange for safe release of the politicians. An ex-cop is hired to free the officials from the group of terrorists.

A renowned actress, Aswathi, is murdered. When a CBI officer, Sethurama Iyer, investigates the case, he unravels a dark secret about Aswathi which brings forth several complexities.

A string of mysterious murders happen in an aristocratic mansion. The owners of the mansion seek CBI officer Sethurama Iyer's help to find the person responsible for the deaths.

Alex, who is awaiting execution, confesses to having committed six out of the seven murders he is acquitted for. Officer Sethurama Iyer decides to trace the original murderer of the seventh one.