Clover - the "pretty" vampire of the title - is a Bardot-esque blonde who dreams of the (now-dead) girl she once was four years ago before becoming a fanged bloodsucker. She is being kept prisoner by her brother, Marcel, who fears Clover will be hunted by the outside world (and who may have other, more selfish motivations as well). Clover's curiosity, however, will not be suppressed: impetuous, sensual, strong-willed, and fearless, she plans her escape. The resultant havoc would make Dario Argento proud.