Synopsis
Raj (Bobby Deol) and Priya Malhotra (Kareena Kapoor) are a newly married couple who have moved to Switzerland. They meet their neighbours Vicky (Akshay Kumar) and Sonia Bajaj (Bipasha Basu) who are also married. The couples spend a lot of time together and quickly become friends. They take a trip to Mauritius together where Vicky suggests that he and Raj swap their wives for a night. This angers Raj and he cuts all contact with Vicky and Sonia. However after some time the two become friends again and they all celebrate on Vicky's birthday. Raj incredibly drunk wanders into Vicky's home whilst Vicky goes to Raj's home.
The next day Raj wakes up and imagines that Vicky and Priya are making love and then finds out that Sonia has been murdered. Vicky accuses Raj that he killed her and the all evidence points to him. Raj knows that Vicky has framed him and flees the authorities to prove his innocence on his own.