Puriyaadha Puthir is a 1990 Indian Tamil-language mystery thriller film written and directed by K. S. Ravikumar in his directorial debut. It is a remake of the 1989 Kannada film Tarka which was based on Agatha Christie's 1958 play, The Unexpected Guest. The film, produced by R. B. Choudary, was released on 7 September 1990.

Plot

Raghu is a death sentenced prisoner who escapes from jail and hides in a bungalow. Luckily, the bungalow belongs to his college mate Geetha (Rekha). Raghu sees Geetha and requests her not to disclose about his whereabouts to police. When Raghu opens a wardrobe, he finds a dead body who happens to be Geetha's husband Chakravarthi (Raghuvaran). Raghu assumes that Geetha has murdered Chakravarthi. Geetha requests Raghu to help her dispose the dead body for which Raghu agrees. Raghu and Geetha take the dead body and dispose it in outskirts of the city. Now, they see a news that a flight in which Chakravarthi was about to travel from Chennai to Kolkata met with an accident leading to the death of all passengers. Geetha and Raghu take advantage of this situation and inform everyone that Chakravathi was dead in the plane crash.