Muriel Montossé

Doctor Valois has invented the "flashage", a cure for depressed people. After having tested it on monkeys, he tries with a first human patient, Alain Durieux. This is great success, everybody's happy except may be Alain's wife, Jeanne, who's worrying about the changes in Alain's personality. Other patients use the treatment with similar successes, and Valois's happy about it. But the monkeys are changing: non-cured ones are made mad by the over-stability and stereotyped behaviour of the cured ones. So are the humans. When Valois realises he can't stop the process, he decides to "flash" himself.

Susan arrives in Haiti to live with her husband Jack, who lives with a lesbian housekeeper and Olga, a nymphomaniac platinum blonde, introduced to her as Jack's sister. Susan begins to have nightmares about voodoo ceremonies and murder.

A thief seeks refuge in a castle owned by two women, Eva and Elizabeth. The women are seductive and teasing, but turn out to be part of a vampiric cult of blood-drinking aristocrats.