Aline and Valcour are two young people who love each other passionately. But Aline's father, the Comte de Blamont, is an unscrupulous despot whom neither friendship, nor even family, restrains his bestial sexual appetites, even going so far as to mix his daughters in his morbid desires. A passionate and cruel plot, faithful exponent of the literary style of one of the most characterized "cursed" writers in Western society.