The first of the seven "Doctor" films, based on Richard Gordon's novels and released between 1954 and 1970. Simon Sparrow is a newly arrived medical student at St Swithin's hospital in London. Falling in with three longer-serving hopefuls he is soon immersed in the wooing, imbibing and fast sports-car driving that constitute 1950s medical training. There is, however, always the looming and formidable figure of chief surgeon Sir Lancelot Spratt to remind them of their real purpose.

A young woman finds out that her boyfriend has been lying to her about where he spends his weekends. She hires a private detective to follow him, and discovers that he has joined a nudist camp.