One of the crime scene turns out to be intriguing for the cop Mathivaanan which links to the series of previous murders with same pattern in the town. Further probing leads him into psychological distress before he gets his eyes on the devil for the intelligent battle. Thadayam deals with a thorough case study of a particular crime scene. A typical crime scene doesn't get anywhere without evidence, but the crime scene in thadayam has all the evidence but leads nowhere. Thadayam Mudhal Adhyayam is a slow-burning atmospheric thriller set in the backdrops of Kodaikanal foggy climate. In tamil, there is no any crime investigtion explored in detail yet.