Cast
Akshay Kumar as Aroush
The confident, carefree 'man about town', who beds girls with abandon and then abandons them, But then one such causal encounter turns serious and he doesn’t know how to deal with the consequences.

Fardeen Khan as Al
Fardeen Khan is Ali popularly knows as Al. He loves to gamble. If his winning ratio with the girls is 100%, his losing ratio is equally good or bad, depending on which side he's betting on.

Riteish Deshmukh as Tanmay
Greatly in demand as Eddie Teddy, the party entertainer. He likes to play with the babes and the babies but that’s for work. He also loves to play with the babes and that’s strictly for pleasure.

Vidya Balan as Esha
She has no intentions of falling in love till she meets the man of her dreams. But the dream turns into a nightmare and she turns into an angry young woman thirsting for revenge.

The story
Three handsome Sydney bachelors Aroush Tanmay and Al - are having the time of their lives in Sydney. They flirt around, sleep around and have numerous 'gorgeous' conquests to their credit. Aroush's (Akshay Kumar) only grouse in life is that there are so many women. So little time since he's getting plenty of action in the nightclub where he works. If Tanmay (Riteish Deshmukh) has a blast playing Eddy Teddy at kiddy parties and playing around with the yummy mummies; then Ali - Al (Fardeen Khan) gambles for a living and grumbles that his biggest strength is his weakness for women!

They suddenly find their dating and mating rituals irreparably destroyed when a dimpled little roommate lands up on their doorstep - complete with her crib. Pacifier and dirty nappy, Aroush. Tanmay and Al know a thing or two about women; but when it comes to babies, they're total zeroes and this bouncing bundle of joy is anything but joyous. But then Angel works her charm and before long, the three lecherous bachelors have been transformed into loving, caring fathers.

But beautiful Esha (Vidya Balan) will have none of it. She’s known heart break once and will do anything to avenge that betrayal. And if it means breaking the hearts of three men who've finally discovered they possess one - then too bad!