The film opens at a mental asylum, where doctors discuss the strange case of Arun Saxena (Ajay Devgn). His behaviour is very different from all the other mental patients. Arun tries to escape from the hospital but is stopped just in the nick of time by the doctors. Arun's mother (Reema Lagoo) sits in front of a temple every day with her back turned to God, only vowing to face God when hope comes. Enter Inspector Vikram Singh (Suniel Shetty), a tough no-nonsense hot-headed young honest cop who has been assigned the case of Arun. At first, Vikram refuses thinking he will go mental, but during a visit to Arun, he is touched by seeing his behaviour towards his former flame Sapna, because of whom he became mental.