A young woman travels with her partner to England on the unexpected death of her brother. Staying with her sister-in-law, she finds her companion soon drawn into a satanic cult based in the house whose rites seem to centre somewhat on large-scale sexual congress.
Odile, a young woman looking for adventure, is seduced by her neighbors, but the titillating new game turns dangerous when two unsavory players enter the mix.
An evil witch brings back to life the infamous Elizabeth Bathory, who was executed several hundred years previously for murdering young women and bathing in their blood.
