Kakkakuyil movie is about Sivaraman(Mohanlal) who has come to Mumbai for a visa. But Sivaraman finds his friend Govindan Kutty (Mukesh) amidst a sea of problems. Sivaraman is forced to participate in a bank robbery planned by Thomas and his gang, which puts them in more trouble.And they find a place as Kunjunni with the body of Govindan kutty and sound of Sivaraman in the house of a blind old couple (Nedumudi Venu and Kaviyoor Ponnamma), whose grandson Kunjunni who had left them a long time ago (when he was 7) and is now coming home.But a turn of events finds Sivaraman and Govindan kutty (combined) as Kunjunni with the body of Govindan kutty and sound of Sivaraman.
When Mythili meets Madhan, she's at once attracted towards and terrified of him since he looks exactly like the serial killer from her nightmares.
A remake of Bommarillu (2006), the film primarily revolves around the relationship between a father and son, in which the father's excessive concern for his son, and interference in his life, leads to the latter harbouring bitterness towards his overbearing father.
