Set against the bustling streets and cinema halls of Bombay, Kala Bazar tells the compelling story of Raghuveer, portrayed by the charming Dev Anand, a young man whose struggle for survival leads him into the dangerous world of black-market ticket selling.

Raghuveer begins as a poor bus conductor, working hard to support his ailing mother and two younger siblings. His already difficult life takes a devastating turn when he loses his job following an argument with a passenger.

With no income, mounting responsibilities, and a family depending entirely on him, Raghuveer finds himself trapped between honesty and desperation. One day, while passing a crowded cinema hall, he notices Kalu selling movie tickets at inflated prices. The sight sparks an idea: perhaps the black market could offer him the money he desperately needs. But entering this business requires capital. Driven by desperation, Raghuveer robs Advocate Desai of Rs. 5,000, a decision that changes the course of
his life.

Using the stolen money, he establishes his own network of black-market ticket sellers outside Bombay's prominent cinema halls.

What begins as a desperate attempt to feed his family soon becomes a flourishing illegal enterprise.