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.
Director: Alain Jessua
Writer: Alain Jessua, André Ruellan
Producer: Alain Jessua
Director of Photography: Jacques Robin
Alain Durieux
Pierre Valois
Jeanne Durieux
Édith
Marc Lebel
le responsable du zoo
une agent d'assurance
le directeur furieux