The story revolves around Dev (Shah Rukh Khan) and Maya (Rani Mukerji), two strangers who meet under unhappy circumstances. Both are unhappy in their respective marriages—Dev is married to Rhea (Preity Zinta), a successful fashion editor, while Maya is married to Rishi (Abhishek Bachchan), a fun-loving but immature man. The film explores the taboo subject of infidelity, not as a villainous act, but as a consequence of emotional voids and loneliness.