Five friends, all affected in some way by a mercury poisoning incident are partying when a freak accident put them on a collision course with an entity that is in no mood to forgive their misgivings.

Michael, a pizza delivery boy, lives with Anu, an aspiring horror fiction writer. One day, on a delivery run, he goes to a bungalow, where mysterious events begin to unfold.

A psychologist with a keen interest in criminology gets entangled in a tough serial killer case which the police find hard to crack.