Raj (Bobby Deol) and Priya (Kareena) are inseparable lovers. Having decided to spend rest of their lives together they get married. Things are hunky dory between them until Raj – who is a Polo player – goes to Switzerland to participate in a Polo tournament and takes Priya along. It is in Switzerland a stranger enters in their calm life. That stranger is Vicky (Akshay) who is at first Raj’s (and Sonia’s) neighbor but soon becomes their good pal. Vicky is a bit of a shrewd character. Although he loves Sonia he is also infatuated by his friend Raj’s beautiful wife Priya. He makes a bold offer to Raj to swap wives for a night while the four of them are holidaying in Mauritius. But Raj refuses as he is not as liberal minded to swap his wife with another man. This brings a temporary cessation in their friendship and the couples fly back to Switzerland. Realizing that he has offended Raj with his indecent proposal Vicky apologizes and peace is made between the feuding friends once again. But in the sly Vicky is waiting for the right moment to make his offer again and strike a deal with Raj. The moment soon comes. It’s Vicky’s birthday – an emotional moment for both Raj and Vicky. After downing quite a few swigs of whisky Vicky gets maudlin and makes his proposal again. Then what! Vicky gets what he wants. Both of them are knocking on the other woman’s door. But amidst this convoluted situation a murder is committed. And the killer has done his/her work with finesse and left behind no evidence. Thenceforth begins the race and chase that is typical of many Abbas-Mustan films like “Khiladi” and “Baazigar”.