Lovely Singh (Salman Khan) is the bodyguard of Sartaj Rana’s (Raj Babbar) daughter Divya Rana (Kareena Kapoor). He is very devoted to his duties but irritates her all the time by following her everywhere. Consequently, Divya and her friend (Hazel Keech) call Lovely and start a prank love affair. Lovely starts loving the mystery person but doesn’t realizes that it is Divya (who also falls in love with him) who was behind all of this. Sartaj Rana (Raj Babbar) suspects him and Divya to be in love and sends criminals to kill him in case his lover turns out to be Divya. Sensing this, Divya sends her friend to Lovely to tell him her true identity. In a twist, it is revealed that the friend is also in love with Lovely. She falsely accepts that she is her strange lover. They marry and have a child. She dies early and reveals to her son about her fraud and asks him to unite Lovely and Divya.

This experimental satire is a comedy of ideas about an alien in the city, who asks questions that no one has asked before. They are innocent, child-like questions, but they bring about catastrophic answers. People who are set in their ways for generations, are forced to reappraise their world when they see it from PK’s innocent eyes. In the process PK makes loyal friends and powerful foes, mends broken lives and angers the establishment. PK’s childlike curiosity transforms into a spiritual odyssey for him and millions of others. This offbeat, experimental drama is an ambitious and uniquely original exploration of complex philosophies. It is also a simple and humane tale of love, laughter and letting-go. Finally, it is a moving saga about a friendship between strangers from worlds apart.