Simone and Martine are usherettes in a porno cinema in Montparnasse. Installed in the hall, they greet regulars, put men in their place, chat and pass the time. At midnight Simone departs to a lesbian nightclub.
A young honeymooning couple stop for the night at an ancient castle. Unbeknownst to them, the castle is home to a horde of vampires, who have their own plans for the couple.
