The Lickerish Quartet (1970)

A tired rich couple were watching porn movies in their castle with their adult son, who was very grumpy, so they went to town to see an acrobatic show. the brave woman in the show was very similar to the woman they saw in the movie, so the husband invited her to visit their castle, and the tension in the family seemed to be intensifying. She stayed for the night, and she stayed in the castle for 24 hours. All three residents of the castle had hallucinations about her, and she asked them in turn, "who has a gun?" Will there be violence before the end of the visit?