Middle-aged Tony Bradmore privately thinks back on his wild youth and his love affair with Doris Randall. Tony's memories are interspersed with scenes from his current life as a cheese factory worker. The young Tony is unemployed and lives with his working-class parents in a poor neighbourhood of crumbling terraces. He commits petty thefts and burglaries partly as a way of getting money and other items he wants, but also partly for the thrill of it. It is implied that his friends engage in similar behaviour and that theft is viewed as a way of getting by in an area perceived to have few economic opportunities. While hanging out with his friends at a local fish and chip shop, he meets the beautiful blonde Doris, whose dress and manner show that she is from a higher social class than Tony, his family and friends. Doris' father, a prosperous scrap merchant, originally came from Tony's neighbourhood, but due to his shrewd and sometimes dishonest business skills, he made enough money to move his family to a large, detached house in a nicer area. As a result of her father's money, Doris has nice clothes and her own horse, does not have to work, and attends an expensive school. Doris' father wants her to carry on his upward mobility by socialising with well-off young people and attending university, but due to her family background, Doris is uncomfortable with these expectations. She is instead drawn to Tony and the "kicks" they enjoy when spending time together, including riding on Tony's motorcycle and having sex. Doris' father disapproves of Tony, thinking Doris can and should do better, and tries to thwart the relationship. Tony soon falls in love with Doris, and tries to convince her to run away with him, but Doris refuses. Instead, she encourages Tony to commit more burglaries and take her along, even after they are nearly caught in the act. The couple eventually burglarise a shoe shop, during which Doris increases the risk on purpose by turning on lights and encouraging Tony to remain in the shop instead of leaving quickly. The police arrive and pursue Doris and Tony, who initially escape, but Tony in his haste leaves behind evidence that is traced to him. He is arrested and sent to borstal, ending his relationship with Doris. Upon being released, he learns that he had made Doris pregnant, and that she married another man before having the child. Doris and her husband were then killed when the motorcycle they were riding crashed. Doris' parents adopted her son. Denied contact with the child he fathered, Tony steals a radio in broad daylight on a busy street and is quickly apprehended. The middle-aged Tony continues his pattern of theft by stealing cheese from his employer. He takes the cheese home to his working-class wife and young sons, with whom he has a loving relationship. Tony is caught with stolen cheese when police wrongly suspect him of a major bank robbery and search his bag. The police inform Tony's manager at the cheese factory, who sacks Tony but declines to press any charges. Tony's wife, although slightly frustrated, is supportive of him, although he does not let her know that he has been thinking of Doris all day. Tony reassures his wife that he can probably get a new job with the butcher.
