Aetbaar deals with one of life's most beautiful relationships – the father and daughter bonding. Right from the arrival of the little princess to the time she moves to her own kingdom, a father always shares joy, sorrows, treasured memories and sworn secrets with his daughter. But the greatest fear for the father remains - the man in his daughter's life. Who is to draw the line between care and over-protection?

Dr. Malhotra (Amitabh Bachchan) believes he is simply a protective parent while his daughter Ria (Bipasha Basu) believes he's simply possessive. All is well till Aryan (John Abraham) walks into their life.

Aryan is the epitome of all the values that Ria's father abhors – wild, unpredictable, overpowering and obsessive. But he has all the qualities that Ria had always wished her life partner should have – an intriguing, magnetic and sensitive personality. Aryan has only one mission in life - being in love with Ria. Nothing else matters.

Soon begins a war of ideologies, desires and wits. How far can Dr. Malhotra go to convince his only child that she's headed towards disaster?