Subtitled From Here to Maternity, the fourth Carry On to be set in a hospital is the last in the series that manages to surmount the shortcomings of its script and be consistently funny throughout. The regulars are present and correct, with Hattie Jacques in the title role as the object of consultant Kenneth Williams's confused affections, while Sid James plays a crook who leads a raid on the clinic where they work to steal contraceptive pills. Amid the innuendo, cross-dressing and crude slapstick, there are lovely cameos from Kenneth Connor as a nervous dad-to-be and Joan Sims as an overdue mum.

A gang of thieves plan to make their fortune by stealing a shipment of contraceptive pills from Finisham maternity hospital. They assume disguises and infiltrate the hospital, but everything doesn't go according to plan. The hypochondriac consultant Sir Bernard Cutting, Matron and the doctors and nurses at Finisham have a habit of getting in the way.