Lord Keith Reisenby is rich, handsome and brave, but a notorious red tape, he is not attracted to marriage. It’s much easier to offer a woman maintenance, and if the mistress gets bored, shower her with gifts and send her on her way. This time his choice fell on Lady Warrington's youngest daughter, the blond beauty Amalia, and the girl is ready to agree. But her older sister, the well-behaved recluse Clarissa, promised herself that she would not allow Amalia to fall. She decides to take a desperate step for a decent girl, offering herself to the lord for a short adventure without any obligations...