Although married, Vishnu is a habitual flirt and always looks out for an affair. When he is almost caught with a young girl in his house, he lies to his family that she is his illegitimate daughter.

Nirakkoottu movie tells Sasikala Varghese (Urvashi) who wants to find out about Ravi Varma (Mammootty) who is sentenced to death for the murder of his wife Mercy (Sumalatha) who is also Sasikala's sister. Journalist Sasikala covers and receives acclaim for the story of the once-wealthy but now death-sentenced convict Ravi Varma, for the cruel murder of his ex-wife Mercy, a beautiful model. A day before his scheduled execution, Ravi Varma escapes prison, and a deeper story that ties him, Sasikala and other characters unfolds in the events that follow.

Major Nair trains the new batch of trainees at the army training centre. Things take a turn when a dangerous criminal makes two of the trainees import drugs from the neighboring country.

Jai, a special investigative agent, falls in love with Anjali and marries her. When he struggles to get hold of Victor Rana, a terrorist on the loose, he asks his wife for her help.

Madhavan Mahadevan, who comes into the city from a village to see off his sister-in-law and her daughter after the death of his elder brother, an upright Customs Officer (KB Ganesh Kumar). While running around to claim the insurance money, he comes to know that his brother was actually murdered by the underworld don Irumbanakkal John (Joy Mathew).

Abraham Mathew Mathan aka Paappan, a voluntarily retired S.P. from the Crime Branch who is unwillingly reinstated to the force for investigating a long-standing murder case.

An education minister's family, steeped in politics and corruption, faces internal strife as his honest son fights for justice.

A physics professor robs the ATMs of a particular bank at night. Unimpressed with the way the police are investigating the case, the bank CEO decides to hire a private detective to nab the criminal.

Nandagopal, an associate editor with Keralareshmi, one of the leading dailies, is aggressive and daring and enjoys a good reputation among the media circle. Born and brought up in Mumbai, Nandan is the son of Venugopal, a daring journalist who was killed by textile mafia long back. Nandan, in Kochi meets Sekharan, an old naxalite who is running Jagratha, a newspaper which is feared by political class. Sekharan's outspoken and belligerent nature had earned him more enemies than friends. He is constantly fighting Vishwathan, who rules Kochi with his muscle and money. Vishwanathan holds a large share in Keralareshmi and enjoys a huge political clout at state and central levels. Shekharan brings out the role of Vishwanathan in the murder of Vincent Paul, which creates a panic in the political level.

A journalist is illegally jailed for exposing two corrupt politicians, He exacts revenge through his new mysterious newspaper.

Veerasimha Mannadiar gets killed by Hyder Marakkar, a notorious criminal. Thereafter, Veerasimha's brother, Narasimha Mannadiar, decides to avenge Veerasimha's death.

Enroute Madras via train, when three friends get falsely accused of a mysterious homicide, they escape and desperately search for the real killer.

Kattalan Porinju and Jose are friends as thick as thieves. Mariyam and Porinju have an unrequited love story that has Jose invested in fulfilling. Chaos ensues when a skirmish pulls in all three of them in a series of violent outbursts.

Advocate Ramesh saves Devan from a murder case. Later, he realize Devan was the actual culprit. Ramesh tries for a payback, unaware of Devan's real intentions and the reason for the murder.