Estratto dagli archivi segreti della polizia di una capitale europea

Under the blazing sun, four carefree youths revel in a leisurely yacht cruise, their days filled with laughter and ease. Their return to shore takes a dire turn when their car sputters to a halt, out of fuel, near the imposing manor of Lord and Lady Alexander. Welcomed inside to escape a raging storm, they accept an overnight stay, with the three young men housed in the servant's quarters and Jane given a room within the grand estate. In the dead of night, a peculiar sound draws Jane downstairs, where she stumbles upon a chilling scene: the Alexanders conducting a sinister black mass. Before she can flee, she is seized and placed on the altar, poised to become their sacrificial offering.