The story takes place in the city of Delhi. The film begins when a girl is murdered by an unseen killer. It is learnt that the killer was her fiancé & had acquired evidence about her infidelity. Then, the story shifts to life of Sehar (Ayesha Takia), a voiceover artist. Sehar, who lives alone in a flat, has a friend named Ritu (Anjana Sukhani), who is a fashion designer. Sehar has a rare disorder - her memory blanks out, leaving her clueless about events that took place in a certain time period. Hence, she rarely socializes. But Ritu forcefully takes her to a nightclub.