Singapore Sling

Two mentally ill women who are clearly suffering from not otherwise specified delusional disorders, a mother and a (grown) daughter, live together in a secluded mansion. They are in a relationship and both are recognised for their beauty. They spend their days playing perverse BDSM-related incestuous games in memory of their Sadomasochism patriarch who, when he was still alive, raped his daughter when she was eleven, murdered several servants, and is now a mummified corpse with which the daughter is shown having sex. They occasionally kill their servants and bury their bodies in the garden.