A voice-over by RD (Anil Kapoor) introduces the four main characters: Ranvir Singh “Ronny” (Saif Ali Khan) who runs a successful business he inherited from his father. His younger brother Rajiv Singh (Akshaye Khanna) who mooches off of Ronny and is an alcoholic. Ronny is dating an upcoming model Sonia (Bipasha Basu), while his personal assistant Sophia (Katrina Kaif) appears to be secretly in love with him. Ronny is also involved in an intense competition with a rival horse-owner Kabir (Dalip Tahil). The film opens with a murder plot involving a car accident which Ronny narrowly survives. When Ronny loses money in a race because his jockey had been bribed by Kabir, Ronny plants a bomb in the jockey’s car and kills him, showing Ronny to be a ruthless businessman. Later, Ronny also destroys Kabir when the latter offers him money to buy his business, which is in debt.

A robbery takes place where European printing plates are stolen. A man decides to use this to his advantage and seek revenge for a past matter involving the death of his wife.

Multi-millionaire Sonia Chang; owner of 36 China Town hotel and Hollywood Casino is found dead with the evidences pointing towards people from different walks of life who may have a motive to murder her. But there is a major draw-back involved in this case as the police does not have concrete evidence to incarcerate any of the suspects.