This is a story of three friends named Aarush (akshay Kumar), Tanmay (Ritesh Deshmkh) and Ali (Fardeen Khan). They think that love and marriage are rubbish.Only sex,one night stands and flirtation is fun.As a result, they end up using all their girlfriends and hurting them. One fine day, they are shocked to see a baby infront of their door.Confused as to what to do about it, and unable to care properly for the child, they hate her and leave her outside someone else's door. But it starts to rain, and their conscience forces them to rescue the child from the rough weather. They start caring for her, and gradually begin to adore her. At this point,the baby's mother Isha (Vidya Balan)comes to take her back. Her father Boman Irani had left the ilicit child there, but she loves her child enough to take her back. The three men who still don't know who is the father, realise that it is Akshay. Now the three of them simply can't think of living without the baby girl. So they spend days persuing Isha to stay with them and keep the baby close..Will they succeed?