 Following a spate of jewel robberies, Bombay Police Commissioner assigns this matter to honest and diligent Police Inspector Pradhan. Pradhan enlists the help of three of his colleagues, namely Inspector Jagdish, Miss Malti Mehra, and Meena. He instructs them that they have to masquerade as a family, with Meena as the daughter, to lure the prime suspect in the robberies, Ranjit Kumar. Things go according to plan, and Ranjit is indeed attracted to Meena, who is now called Rita. But the robberies keep on escalating, and this time Ranjit Kumar has an alibi - he is with Rita, yet the police are baffled as to how can one person be at two places at the same time? And to complicate matters more, Meena falls in love with Ranjit, a move that could well jeopardize the entire mission.