John Carter, a rich, spoiled rake, sets out from London on a bet to prove to everyone that he can earn a living without resorting to the help of inherited capital. He learned to work with horses as a teenager, spending summer holidays with his uncle, the owner of a stud farm, and therefore, under a different name - he is too well known - he gets a job as a manager of a bankrupt horse farm. There he meets Florence, a lovely girl, the daughter of the farm owner, and out of habit decides to flirt with her. But he unexpectedly discovers in her such virtues that he has never seen before in any woman...