Simran Sehgal (Mallika Sherawat) is a young woman married to Sudhir (Ashmit Patel), a workaholic, who was previously married to Simran's elder sister now deceased sister, Sonia. Simran only married Sudhir in order to give motherly love to Sudhir and Sonia's son. She leads an unhappy, lonely and passionless married life. After accidentally meeting her former flame, Sunny (Emraan Hashmi), she decides to engage in an affair with him. The affair starts to consume her life and Simran finds herself constantly lying to her husband and neglecting her motherly duties. After some time, she decides to end the relationship, but to her surprise, she finds that Sunny has also been simultaneously seeing another woman named Radhika. She regrets her unfaithful act and tries to cut all ties with Sunny. Meanwhile, Sudhir has started to have doubts about his wife, and hires a detective to trace Simran's whereabouts. The detective is able to provide S
udhir with pictures of Sunny and Simran having sex and sleeping together tells him that Sunny is a serial womanizer, and had find with many girlfriends. The next day, Sunny suddenly goes missing. The police come to Sudhir and Simran's house and inquire about him, on a report registered by his girlfriend Radhika. Simran comes across the photographs of her and Sunny amongst Sudhir's things, and realizes that he may have something to do with Sunny's disappearance. Sudhir reveals that he went to Sunny's apartment to confront him about the affair, and the two men began to argue. The situation escalated, and Sudhir fatally beat Sunny and buried him in a panic. Realising her fault and role in the situation, Simran supports Sudhir and takes the blame for killing Sunny. This develops and strengthens their love and faith in each other. Simran is arrested by the police and pleads guilty, while at the same time, Sudhir claims that it is he who killed Sunny. This confuses the pol
ice. Moreover, the body is missing from the burial spot. In a sudden change of events, Sunny is shown to be alive. It is revealed that the entire situation, from initiating the affair to goading Sudhir into a fight was planned in advance by Sunny, with the help of Radhika. Sunny hoped to have Sudhir imprisoned so that he could continue his affair with Simran. Sunny isolates Simran and chases her into a jungle, where Sudhir arrives and the two begin to fight. Sudhir manages to beat him, and Sunny leaves as he sees the couple together, seemingly realizing their love for each other. However, Sunny then runs up behind Sudhir with a rake but is then shot in the back by a police officer, who arrives just in time. Finally safe, Sudhir and Simran reunite and take care of their son together.