December 1935. Director Monty Harrison's production of 'A Christmas Carol' has had a troubled run on its tour of regional theatres. With tensions amongst the cast running high, the company reach their final stop - London's Theatre Royale. Catastrophe, however, strikes on opening night - Scrooge dies on stage, the result (it is presumed) of a heart attack. But the show must go on. Until, that is, a leading theatre critic - and old rival of Monty's - is killed backstage. Are those associated with the production being picked off one by one? Budding journalist Daphne King takes up the case.