Kalu (Guru Dutt), a taxi driver who was sentenced to prison for speeding, is released two months before his term for good behaviour. His old employer refuses to let him drive his taxi again. Wandering the streets, Kalu helps a young woman Nikki (Shyama) to fix her car. Kalu goes home but his brother-in-law will not have a convict in the house so he finds himself on the streets. Kalu visits a club to deliver a message for Captain on behalf of a former jail mate. He gets a job at Nikki's father's garage and love blossoms between Nikki and him. When her father finds out, he kicks Kalu out. Kalu asks Nikki to elope with him but she hesitates and by the time she decides to do so, he has already left. Kalu returns to the club and takes up a job with Captain and his band of crooks which includes a dancer (Shakila) and a Parsi barman, Rustom (Johnny Walker).