It is three days before Christmas. In the Doctor's Common Room of St Andrew's Hospital in London, David Mortimore is composing the speech he will give to a distinguished gathering of neurologists, a speech which may well make or break his career. All he needs is a little peace and quiet to finish it...
Unfortunately peace and quiet is in very short supply. A nurse with whom he had an affair years ago turns up to confront him with the fact that he is the father of her son.
Not only that, but said son is now downstairs in the hospital and is desperate to meet the Dad he has never seen.
How on earth can Mortimore keep this catastrophic news from his wife and the hospital authorities, and still deliver his speech?
This hilarious farce reveals the sorry tale, and involves Mortimore's hapless colleague, a police sergeant, a senile patient, an assortment of matrons (real and fake), a syringe full of tranquiliser and a considerable amount of confusion.