Naina Saigal (Kajol) finds it hard to forget the anguished screams of her twin sister Sonia (Kajol) when she is brutally raped and killed. She pursues the criminal against the warnings from her mother (Tanvi Azmi) and the police commissioner (Pramod Moutho). Unfortunately, she loses the case against him in the court. His girlfriend, a nurse who was to testify against him goes back on her word as he promises her undying love.

A shattered Naina doesn’t give up hope. She saves another girl from the criminal, which infuriates him and he targets her now. She comes across a blind ex-army officer, Sooraj Singh Rathod (Sanjay Dutt) who supports her. He trains her to nab the criminal. What follows is how she confronts the ruthless enemy!