Rhythm) is a 1986 Indian Malayalam-language drama film written and directed by Priyadarshan, starring Mohanlal, Lizy, M. G. Soman and Karthika.

The film is very loosely based on the 1975 movie One Flew Over the Cuckoo's Nest [1][2][3] which was an adaptation of the 1962 novel of the same name by Ken Kesey.

Vinod becomes mentally ill after his girlfriend Anitha dies due to an electric short circuit accident during a rock concert.

With the help of Dr. Savithri, who is Dr. Ravindran's daughter, and Dr. Unnikrishnan, a very old and close acquaintance of Vinod from his childhood, he slowly regains his memory and mental equilibrium.

Dr. Ravindran has already arranged Savithri's marriage with Hari and so he opposes the relationship along with holding Vinod hostage and treating him as if he hasn't recovered.

All lyrics are written by Poovachal Khader except where noted; all music is composed by Reghu Kumar, RajamaniIn 2002, comparing the film to One Flew over the Cuckoo's Nest, S. Santosh of The Hindu wrote, "Director Priyadarsan's syrupy Malayalam adaptation of the classic, Thalavattam, saw Mohanlal in his usual mainstream self.