Karisma Kapoor is Neha Chopra who lands a job in Nainital as an interior decorator through the Internet. She gets confused when she lands in Nainital because three different men warn her that her life is in danger as a serial killer who targets pretty women is stalking the town.

Dino Morea is Raj Singh, a happy-go-lucky, painter, photographer and romantic lover. He is in love with Neha Chopra.

Suniel Shetty is Harshvardhan, a resident of Nainital who also falls in love with Neha Chopra.

Jackie Shroff is the obsessive, possessive Mayor Raj Singh Dabral of Nainital who falls in love with Neha Chopra, an interior decorator, when she comes to decorate his bungalow. He refuses to take no for an answer.

Preeti Jhangiani is a fiery cop; Preeti Rastogi is in love with Suniel Shetty.

It is no longer a theory rather it has become a scientific fact, that every human being has a split personality i.e. two personalities in one. One leads you onto the right path while the other takes you in the wrong direction. This is a result of one's cultural background or knowledge base, and also due to genetic factors. Our story revolves around such a person with a split personality. A person, who is a good human being for his education and culture, but his genetics, has transformed him into a human 'Baaz'. This human 'Baaz' resides in the scenic hill station town of Nainital. Neha Chopra, an interior decorator is hired by Mayor Jai Singh Dabral to beautify his old bungalow. But she is least aware that the human 'Baaz' is all set to make her a prey.