Jai (Fardeen Khan) is married to Geeta (Sonali Kulkarni). Jai is a fashion photographer who's an incorrigible flirt, but also loves his wife. However, Geeta is always suspicious of her husband's motives. In fact, her suspicion shakes the foundation of their marriage. In the midst of all this, Jai meets a gorgeous model, Ria (Urmila Matondkar), a mildly psychotic woman, and for both of them it's a 'fatal attraction'.

Ria is a pampered rich girl who always gets whatever she wants in life. But this time she wants something that belongs to someone else.

One fine day, the truth dawns on Geeta that Jai has been cheating on her and is dating Ria. So what happens next? Does Geeta win back her husband? Or did Ria's fatal attraction wreck their marriage?

Pyaar Tune Kya Kiya is a Ram Gopal Varma production of a film being directed by his protege and newcomer Rajat Mukherjee. The film, shot mostly in Goa, is a remake of the Hollywood blockbuster Fatal Attraction starring Michael Douglas and Glenn Close.