Michael, the Earl of Danesbury is being hounded to marry Lady Alice Randall, a woman he does not love. Even the Prince of Wales is determined to force him into marriage. Michael flees to his dilapidated ancestral castle for the first time since inheriting his title. There he heaes a girl singing and falls in love. She is Bettina, daughter of an eccentric major, a genius with gardens, plants and herbs. Determined to put the castle gardens in good order, Michael hires the major and becomes more and more enchanted with Bettina. But Lady Alice is in hot pursuit, determined to use her powerful connections to snare him. His only hope was to enlist Bettina's help.