3 couples : Raj (Bobby Deol) and Sanjana (Sonam Kapoor), Vikram (Irrfan Khan) and Shivani (Rimi Sen), Yogi (Sunil Shetty) and Maya (Celina Jaitly)lead peaceful lives, but Maya is suspicious of her husband having an affair. She decides to hire a private investigator to find the truth. She goes to Kishan, both successful, cunning and easily trusted. He soon finds that when Yogi is about to be discovered by his wife, both his friends come to the rescue, which targets them for investigation. Soon he understands that the three cheat on their wives. Saddened by Sanjana's deep grief, he decides to te...