Nine persons sign up for a self-awareness course at an isolated country estate. Dr. Romero, a charismatic therapist, and his assistants confront the patients with their problems. Cut off from the rest of the world, the participants are increasingly drawn into the therapy's spell. After a week, the unexpected occurs: Romero is murdered. The group breaks out in a panic, and a psychotherapy course turns into a campaign of psychological terror. Grotesque accusations, mix-ups, accidents and false assumptions bring the situation to a climax. Everyone loses control in a growing spiral of hysteria, which ends in an unavoidable catastrophe.