As Siddharth's memory loss worsens, he starts to experience strange and terrifying events. He becomes convinced that someone is trying to manipulate and control his life. The film's suspenseful plot twists and turns as Siddharth tries to uncover the truth about his life and the people around him.

Chatrak contributes to contemporary Bengali cinema by reasserting the power of minimalism and ambiguity. Rather than delivering tidy resolutions, it asks audiences to sit with discomfort and to consider how socio-economic forces shape private lives. For viewers interested in films that prize atmosphere and subtext over plot, Chatrak rewards close, repeat viewing.