In France, the orphan Martine (Isabelle Goguey) leaves her boyfriend Serge (Michel Duchezeau) one day before the scheduled to work as a caregiver in a remote retirement home he has arranged for her in the countryside. She has a cold reception from the lame servant Flavien (Michel Flavius) and the owner, Hélène (Betty Beckers), explains that they have not prepared a room for her yet. Further, she will need to remain secluded for the next two months for adaptation purpose. Soon she knows the other caregiver, the young Nicole (Charlotte de Turckheim), who introduces her to the seven weird guests of the house that are vegetarians and shows the work itself to her. They befriend each other and Nicole promises to show the photo of her beloved boyfriend, but she does not have time since Hélène allows that Martine meets Serge. While she leaves the house, Nicole is attacked by the elders that kill her and eat her organs. When Martine returns, Hélène tells that had an argument with Nicole and fired her, and transfers Martine to Nicole's room. When Martine sees Nicole's suitcase with Flavien in the boiler room, she begins to suspect that something might have happened to Nicole.

"La nuit de la mort!", a.k.a. "Night of Death", is a French horror movie from 1980 with a flawed story of cannibalism. There is no explanation why the elders remain alive using vegetarian diet associated to human flesh and organs. The plot does not explain whether they have a pact with the devil, or are witches and wizards, only that they are cannibals and the victims are young woman. Even the soup that the creepy elders give to Martine is not explained. My vote is six.

Title (Brazil) "A Noite da Morte" ("The Night of the Death")