唐（沙鲁克·罕 Shahrukh Khan 饰）是大毒枭波利斯的手下，而波利斯神龙见首不见尾，行踪诡秘，因此，在外抛头露面的唐成为了警察重点追捕的对象。唐嗜血残暴，无恶不作，杀人不眨眼，卡米妮（卡琳娜·卡普 Kareena Kapoor 饰）的丈夫就是唐的手下冤魂。为了替丈夫报仇，卡米妮决定与警方合作，却不幸因此而丢了性命。
一场意外让唐死于非命，与此同时，一位相貌与唐一模一样的神秘男子瓦尔加（沙鲁克·罕 Shahrukh Khan 饰）浮出了水面。瓦尔加本只是一介平凡少年，最终却在利诱之下成为了唐的替身以及线人，而他的存在遮掩了一个惊人的秘密，隐藏在这个秘密背后的真相究竟是什么呢？

Haunted by the past, Vijay turns to crime, while Ravi, his brother, becomes an honest police officer. Fate pits them against each other when Ravi is sent to nab Vijay.

A ruthless gangster named Don is killed during a scuffle with the police. Since only DSP D'Silva knows of this incident, he recruits Vijay, who is a spitting image of Don, to replace the original Don and infiltrate his gang. D'Silva plans to nab the entire gang, but when he dies during a raid, the secret that Vijay is not Don is also buried with him.

Vijay Kumar is the illegitimate son of a construction baron, Raj Kumar Gupta and his first love, Shanti, whom Raj had given up in order to marry a wealthy heiress. Raj does not know of this son, who grows up and after his mother's death comes to Delhi to take revenge on the Gupta family by destroying the family's business and their relation with each other.