A young couple, Ganga and Nakulan, arrives at the ancestral home called Madampalli of the latter. Hailing from a family that follows tradition and superstitions, Nakulan's uncle Thampi objects to the couple's idea of moving into the allegedly haunted mansion, which Nakulan ignores. The couple moves in anyway following which seemingly supernatural events begin to happen.

Harikrishnan is a geeky software professional who suffers from an obsessive compulsive disorder. A harthal day sees him travelling to Trivandrum for a conference, and in the midst of the night, he ends up at Paravur railway station with two strangers - Gopalan a veteran politician and Narayani a social worker - for company.

Sam Alex, a former police officer haunted by the tragic loss of his family, drowns his grief in alcohol until duty calls him back. When a string of eerily similar murders emerges, he’s forced to confront both the case and the ghosts of his past.