 Roop, a wealthy heiress, learns that she has a half-sister, Mohini, who grew up in the city s red-light district. She invites her into her home and insists that she shares everything she has. She doesn t mean the invitation to include her fiancé, the handsome Rajkumar. Mohini has other ideas. The two women look identical and when Roop realises that Mohini has fallen in love, she decides to sacrifice her own happiness in order to atone for her father s sins.