Plot :--

Raj (Bobby Deol) and Priya (Kareena Kapoor) meet by chance and fall in love after a whirlwind romance. They marry and reside in Switzerland, where they meet another Indian couple: Vikram (Akshay Kumar) and Sonia (Bipasha Basu). The couples quickly become friends and decide to go on a Christmas vacation together to Mauritius.

During their vacation, Raj sees Vikram with another woman, kissing and looking intimate. At the same time, Sonia begins to try to seduce Raj, who rejects her. Vikram notices Raj looking at Sonia and casually talks to him about wife swapping, this upsets Raj and an argument breaks out between the two men. However, a couple of days later, they resolve their issues and become friends again. On Vikram's birthday, the two men celebrate by getting drunk together, sharing bottles of alcohol. Once again, Vikram asks whether he could become Raj for one night and tells Raj to become Vikram, which Raj rebuffs, but still, both men end up in opposite houses.

The next day Raj wakes up to find a semi-naked woman in bed with him and realizes he is in Vicky's house. After talking to Priya about last night, he imagines Vicky was able to seduce and convince Priya to go ahead with his wife swapping and Raj imagines Priya satisfying Vikram by giving Vikram his birthday aka allowing Vikram to Have sexual intercourse with priya . After some time, Sonia is found dead, and Raj is accused of her murder since his fingerprints are found on the murder weapon – an alcohol bottle. Determined to prove his innocence, Raj manages to escape from the court and is chased by the Swiss police. He meets Priya, who eventually believes his innocence and aids him in finding out what really happened. He decides to search Vikram's house, only to be interrupted by Vikram, who calls the police and then reveals that everything was planned in advance. Raj escapes in Vikram's car with Priya.

Raj finds a boarding pass that belongs to Sonia Bajaj, which states that Sonia arrived in Zürich on 29 December – however, Sonia was supposedly murdered on that night. Raj suspects her to be the woman he saw with Vikram, traveling to Geneva together. In Geneva, Raj meets an insurance officer who is trying to find evidence that Vikram was involved in the death of his wife, in order to receive her life insurance payment of $100 million. Working with the insurance agent, Raj traces Vikram to a cruise ship. There, he sees Vikram dancing with a woman who is revealed to be 'Sonia', alive and well. Raj confronts Vikram, who finally explains the whole devious plan – the woman whom he kissed in Mauritius was his actual wife Sonia Bajaj (Mink Brar), while the woman with him that Priya and Raj were introduced to in Switzerland is his girlfriend Neeta. Vikram, a struggling musician, married the wealthy and glamorous Sonia and convinced her to take out an insurance plan of $100 million on herself. He then formulated a plan with Neeta to have Sonia murdered so that they could collect the money.

Vikram boasts about having pinned the murder on Raj. However, Raj takes Vikram to a computer and shows him his empty bank account. Raj says that he had guessed the password, "Everything is planned", something that Vikram used to say a lot, and used it to transfer the money back to the insurance company. Raj also reveals that everything Vikram said had been recorded. A fight erupts between the two and Neeta dies in the conflict. Angered at losing Neeta, Vikram gets aggressive, killing the insurance officer. He chases Priya to kill her, but Raj impales Vikram with an anchor from the cruise ship, killing him. Raj and Priya return to India in the end.

Cast :--

Akshay Kumar as Vikram Bajaj
Bobby Deol as Raj Malhotra
Kareena Kapoor as Priya Malhotra, Raj's wife.
Bipasha Basu as real Neeta / fake Sonia Bajaj (face appearance)
Mink Brar as real Sonia Bajaj / fake Neeta (special appearance)
Johnny Lever as Banu Pradhan
Amita Nangia as Sheena Devi
Dalip Tahil as Priya's father
Sharat Saxena as Insurance Officer
Sheela Sharma as Vina Chandra Devi
Narendra Bedi as Lakhan Pal