Bernard is an inveterate seducer. He has three mistresses, all flight attendants, whom he has promised to marry. He has organized his schedule around the flight schedules of the three women, receiving them in turn in his bachelor pad. Then Robert, a childhood friend, shows up and asks him to put him up for a while. The situation becomes even more complicated when the women's schedules change. The Don Juan doesn't know which way to turn and juggles his appointments. Doors slam in all directions and the inevitable happens.

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!