Probably filmed at Pathe studios, London.
Various C/U's of income tax demands and racing forms. M/S of men at the races and others watching darts, all things people have a bet on. M/S Edgar Allan Poe tale "Never Bet the Devil Your Head". M/S man who has lost his head, it flies into the picture and reattaches itself. Various diagrams and sketches explain betting and odds. M/S couple playing strip poker, she ends up wearing his overcoat and hat. Next game she ends up in her underwear covering herself up with a giant playing card.