Set in 1986, the film unfolds in the rural town of Mahalakshmipuram, where four strange suicides occur on Tuesdays, a day dedicated to the goddess Lakshmi. Each suicide is accompanied by mysterious writings on walls confessing illicit affairs, creating fear and suspicion within the community. Newly assigned SI Maaya begins investigating the deaths and soon realizes they might be murders. As she delves deeper, she connects the dots between the victims and a kind-hearted RMP doctor, Viswanatham, and uncovers a complex web of secrets and hidden desires.