Indian-based traditional family of Pundit Darbar (Vikram Gokhale) gets a visit from Sameer Rafilini (Salman Khan), from Italy, who has come as a pupil to learn music and singing. Darbar and his family accept him. Sameer meets Nandini (Aishwarya Rai), Darbar's daughter, and both fall in love. But Darbar wants Nandini to wed Vanraj (Ajay Devgan), and has Sameer swear that he will leave India.
Cha Do Hyun is a rich heir to a family company with one major problem. Due to suppressed childhood trauma, he suffers from dissociative identity disorder manifested in 7 unique personalities who are out of his control. In order to overcome this disorder in secret, he hires a first year medical resident to help him heal by killing off each personality one by one.