Dastak is a story of a mentally unstable genius (Sharad Kapoor) and his obsession for the Miss Universe (Sushmita Sen). His unparalleled obsession makes him so possessive about her that he begins to kill people around her so that he can come close to her. Sharad Kapoor succeeds in kidnapping her and keeping her in confinement but ultimately she succeeds in getting herself free from his obsessive clutches. Mukul Dev plays the role of a police officer who tries to rescue Sushmita Sen from Sharad Kapoor.