John McCallum ("Capt. Gary Anson") is a bit of a cove. He likes his good living, women and horses. When an expected inheritance doesn't materialise, he loses the girl and the money - but still as his horses, and a potential winner at that. Unfortunately for him, he gets a bit pickled one evening and decides to be a bit clever - causing suspicion to be laid at his door that there has been some race fixing going on. The ensuing investigation pits him against his former love (Greta Gynt - who has appropriated a £20,000 set of pearls from him) and her new, buffoon, husband "Lord Panniford" (Raymond Lovell) and it all boils down to a one hundred pound note. It's a throwaway little story but some decent writing from Geoffrey Kerr and lively characterisations from McCallum as well as a suitably venal Gynt and Leslie Dwyer as his street-wise batman "Hillcott' help to keep it moving along sharpishly. It's a touch too long, the jokes becomes a bit stretched, but it's still worth a watch if you like the cut and thrust of the horse racing world.