Siddharth (Emraan Hashmi) is the chief of a police station in Goa,who lives with his wife Sonia (Shamita Shetty),there.His relations with Sonia are deteriorating day by day,as Sonia wants to become a working woman,something which Sidharth does not approve of.Sonia is also pregnant with Sidharth`s child in her womb.As Sonia wants to be a working lady,she gets her child aborted,which further makes their relationship even worse.One night,Sidharth meets Anna (Udita Goswami),a very tragic kind of a woman.Anna is a married lady,whose husband (Sameer Kochhar) beats her a lot.Just like Sidharth even her relationship with her husband is also not so good.Sidharth and Anna after that meeting,start meeting each other,regularly and by the time,Anna falls head over heels for Sidharth.Sidharth doesn`t really love Anna,but he develops a soft corner in his heart for her and feels attracted towards her.Through these meetings,both of them develop a physical relationship with each other.As a result,Anna gets pregnant with Sidharth`s child,who has had no physical relation with her husband since last 2 years.Sidharth also finds out that Anna is suffering from cancer.Now,Sidharth wants to save Anna`s life,for which he has to gather some money.He decides that he will get her treated with the money he had recovered in a drug raid.With the money in his hand,he is heading off towards Anna,but unfortunately she dies in a bomb blast that night.Sidharth is suspected of killing her and this case is being handled by none other than his own wife,Sonia,who starts hating him,when she learns that Sidharth is the murderer of Anna and also that she was pregnant with his child.Sidharth`s life is in a mess.He has to find out Anna`s murderer and he also has to win his wife`s trust so that he can lead a good life,with her but how?
