Dr. Stem, a world-renowned specialist in obsessive-compulsive disorder, or OCD for short, is waiting to see his patients. The six people chatting in his waiting room have had to wait many months for an appointment. But the eminent therapist is delayed, stuck in Frankfurt due to flight disruptions. As they chat and play Monopoly to pass the time, the patients get to know each other and even try group therapy... punctuated by each other's uncontrollable tics!