Johnny Flanagan did not have the privileges of a good education or wealthy background but the streets developed his natural talent to be a great fighter. His enormous potential to reach the top is born out of a string of spectacular successes. All of which is brought to a halt when he develops a physical relationship with his manager's wife, the beautiful but manipulative Lorna. His naive temperament is no match for her callous, dispassionate scheming and he unwittingly becomes a pawn in Lorna's ultimate plan to murder her husband.

A greedy but successful professional gambler wants to join the British Establishment when he falls in love with a blue-blooded lady. But first he must mend his ways and then dump his nightclub singer girl friend. She's not so easy to get rid of, neither is his past.