Reena, anxious to know the identity of Karuppu Sami, investigates the murders and discovers that the haunting was a sham perpetuated by the village schoolteacher (played by Poovilangu Mohan) who held a grudge against the Alampriyar's family and orchestrated the haunting to drive them out of the house. But the schoolteacher vehemently denies that he had anything to do with the mysterious murders. Reena, then suspects the priest of the Karuppu Sami shrine in the village who frequently enters a state of trance during which he is possessed by Karuppu Sami and pronounces judgement. But Reena discovers that though the priest is genuinely possessed by the spirit of Karuppu Sami on occasion, he was not the killer. In her investigations, Reena is assisted by Rajendran who acts as her guide. Rajendran gradually falls in love with Reena.