Inspector Deepak is given the case after an unexplained couple passes away. But during the inquiry, he gets into a fight and loses his leg, which ends his career.
A criminology student named Vetri works for a private investigation company and is assigned to obtain data on three individuals. But one by one, his victims start dying for no apparent reason.
Two persons who have a similar appearance but are strangers are discovered by the police as potential suspects in a man's murder case. But as more details come to light, the case becomes more difficult to understand.
While investigating a string of killings, a rookie police officer and an experienced partner find themselves after a vicious serial killer who is out to kill as many people as possible.
A realistic cop named Vikram is searching for Vedha with his colleague Simon. Vikram's life is thrown into chaos when Vedha promises to tell him a narrative once he willingly surrenders.
After allowing a smuggler to get away with it, Inspector Vinayak gets suspended. Following that, he meets a bunch of individuals who want to steal 500 crore from a mobster. He agrees to assist them in exchange for a cut of the spoils.
Kiruba is friends with Satya. While Kiruba works hard in school to become a Sub-Inspector, Satya is careless, likes to drink, and gets into violent confrontations. Satya's promotion to Sub-Inspector flips the roles.
After his father passes away, Arun gives up on his goal of being a filmmaker and becomes a police officer. After that, he makes an effort to find a deranged killer who preys on schoolgirls.
Suyambulingam is a brilliant man who dropped out of school, and he learns from movies. He employs all of his cunning to keep his family safe as a sinister tragedy threatens to harm them.
In the 1980s, five close friends had a carefree life in Madhurai. Their friendship is put to the test, though, when they carry out a near-perfect crime and are caught red-handed.