I never really took to Jim Dale in these films, and here he isn't really any better. He is the disgraced "Dr. Nookey" who after an assignation that went a bit wrong, is despatched to a distant hospital where he encounters "Screwer" (Sid James) - the procurer of a miraculous slimming formula. Determined to capitalise on this, he returns to Britain and with Hattie Jacques again donning her matron's uniform is soon making a mint. His good fortune attracts the attention of his erstwhile boss "Dr. Carver" (Kenneth Williams) and soon he has to fend of those not just envious of his success, but also ...