Set in late 18th-century England, the narrative unfolds from the unique perspective of a flea living in the body hair of the young and naive Belle. The story follows the protagonist's sensory awakening and subsequent corruption. After being seduced and blackmailed by her church's vicar, she becomes entangled in a spiral of forbidden encounters involving figures of ecclesiastical authority and members of her own social circle. Through the eyes and narrative of the parasite (or "bloodsucker"), a chronicle of debauchery is revealed, where Belle's initial purity dissolves in a series of erotic vignettes that challenge the moral conventions of the Victorian era, the period in which the 19th-century British tale is based.

This is a fascinating example of hardcore cinema from the "Golden Age," distinguished by an aesthetic ambition rarely found in its contemporaries. Director Sharon McNight achieved a cinematic adaptation that, while explicit, relies heavily on remarkable production design and cinematography that evokes the sumptuousness of period dramas. The flea's voice-over adds a cynical and almost sociological dimension, allowing the film to function not only as an adult product but also as a biting satire on religious hypocrisy and sexual repression in general.

As a point of interest, this marks Paul Thomas's first appearance in an adult film, and the first on-screen sex scene for the charming Jean Jennings, who here indulges in sex without any inhibitions.