The film begins with Sundeep Kishan accidentally walking into a crime scene, after which he witnesses Boxer Dheena brutally stabbing his wife to death. As Sundeep is a police officer he decides to trail behind Dheena to arrest him for the murder. But, he escapes and somehow manages to hurt Sundeep, before the latter kills him (Dheena).

Four months later, a physically fit but emotionally damaged Sundeep decides to rejoin the police force despite the warnings given by his psychologist Lavanya Tripathi. Co-incidentally, he once again bears witness to another murder committed by Mime Gopi, who kills his wife in the same fashion as how Dheena did. With a conviction, he tries to capture Mime Gopi, but he commits suicide by jumping of a building terrace. 

A stumped Sundeep, gets psychologically traumetised again, and takes a short break to sort his feels out. In this time, Lavanya helps him to recover and bounce back to his everyday life. That's when he meets Daniel Balaji, who is a psychiatrist and finds out that something is mysterious about him and his behaviour resembles both Dheena and Mime Gopi.

When Sundeep starts to snoop around Balaji, he finds out that Balaji is connected to the murders, but he is being used as a pawn in a chess game, which is being played by someone much sinister. The rest of the plot revolves around how Sundeep Kishan stops another murder being committed and to find out who is the reason behind this string of murders?

Sundeep Kishan has has pulled off the police avatar decently, and proves that he has all the credentials to be a commercial hero. Lavanya Tripathi plays an important role, and has performed well. Daniel Balaji is easily one of the most underrated actors in the industry, as he has yet again delivered an impressive performance. Likewise, Jackie Shroff, Bagavathi Perumal, Jayaprakash and Mime Gopi have played their parts neatly.

Producer CV Kumar now officially turns into a director with Maayavan. He has done a pretty decent job in the directorial department even though many loose ends are obvious. The script revolves around a simple whodunnit concept, with a confusing screenplay. Though all the threads get connected in the end, it makes the entire experience a little draggy. 

M Ghibran's has provided the tunes and his background scores are in sync with the movie's genre. Gopi Amarnath cinematography skills come to fore and his shots give an exciting and a dark edge to the movie.

In short, Maayavan, is a honest attempt at an interesting thriller.