Duncan is working in St. Barnabas hospital, Sydney, under fearsome Professor Beaumont and alongside the Australian answer to Bingham, Maurice Griffin. Dick Stuart-Clark is admitted as an amnesia sufferer, though this is a ploy, as he skipped St Swithins having sold off oxygen cylinders and is wanted in Sydney for not paying his hotel bill. Duncan takes him to see Beaumont about a job but before any deal can be reached Griffin, whose patient Dick is, has shoved a syringe full of sedatives up his bottom and knocked him cold.

Still unemployed, Dick parties till all hours, causing Duncan to be late for an operation and throw up on the theatre sister. Duncan decides it's time his friend got a job and makes him fill in the application form. Dick, a reluctant interviewee, does his best to get on the wrong side of chief anaesthetist Wilkinson, but the man loves his cavalier attitude and gives him a job.

Dick and Duncan both want to take physiotherapist Pamela Kincaid to a weekend beach party. Duncan plans to get Dick out of the way by sending him to a conference but Dick 'persuades' a philandering patient to take his place. When the man's wife turns up at St. Barnabas to see him, a heavily bandaged Duncan impersonates him, but his efforts to avoid Professor Beaumont leave Dick free to act as escort to Pamela.