Bhola a young musician arrives in Bombay to make a living and earn money to marry off his crippled sister. He comes across Ranjit Kumar who is a wealthy businessman during the day and a thief and smuggler by night. Ranjit approaches Bhola to impersonate himself at social engagements while the real Ranjit settles for his criminal activities. At the same time an undercover police woman persues Bhola/Ranjit hoping to catch him red handed.