Sethurama Iyer CBI

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.

An unknown pregnant girl has ended her life by hanging herself from ceiling fan in a room of a little known hutment of Mumbai. In middle of the night, an uninvited Inspector lands in the house of an eminent Industrialist to investigate the case. Baffled by suggestion of being linked with the incident and shocked by the thought of being responsible for death of a person surviving at the outermost fringe of their vision of society, Vikrant Pradhan and his family give in to the interrogation reluctantly.

Appu is a taxi driver in Mumbai (Bombay). He is still haunted by the suicide of his sister who was sold to a brothel. He is still trying to find out the culprit. Here he meets Sita who is chased by Eunuch Maharani who is also responsible for the death of his sister. Maharani is the madame or kingpin of the flesh trade in Mumbai. Maharani wants the beautiful Sita for the flesh trade. Appu fights and saves Sita from Maharani. Here his friend Vignesh and his lover Kaveri die saving Appu and Sita.

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

Alexander, a powerful mafia leader, faces several trials and tribulations while trying to juggle his estranged relationship with his mother who abandoned him, while trying to rule the underworld.

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.

Sumesh is depressed due to the fact that he is impotent and cannot have children. However, he learns that he has an illegitimate half-sister and soon tries to form a bond with her and her family.

Dr. Pavitra (Madhurima) is a psychiatrist who works in a mental hospital. Sri Krishna (Suresh Gopi) is a successful criminal lawyer. Bujji (Ajay) works under Sri Krishna. Sri Krishna and Pavitra are disciples of a godman. Pavitra has a family dispute with her brother-in-law and he dies under suspicious circumstances. Slowly a few people associated with Pavitra are killed and the needle of suspicion turns towards Pavitra. The rest of the film is all about who did it.

Ramakrishna arrives in Kolkata and takes up residence in Padmavathi's housing colony. While at first he seems happy and easy-going, soon his real reason for returning to Kolkata is revealed. He wants revenge!