The two couples go to Venice. Bunny, attracted to Germaine, decides to join them. On the train, Stephen questions Gerald and Germaine about how they met. When they arrive in Venice, Claire quickly becomes jealous, as both Stephen and Gerald seem fascinated by Germaine. Claire eventually demands that Gerald send Germaine away immediately, so he orders her to leave the next day. Meanwhile, a drunken Bunny climbs a ladder into Germaine's bedroom and offers to take her away. After she turns down his offer, he falls into a canal on his way out and is apprehended by two policemen. Stephen believes he hears a burglar and goes to her room to investigate. The two are then caught in a seemingly compromising position by Gerald and Claire. However, Bunny reappears and explains what really happened. Her love for her husband rekindled, Claire breaks off her affair with Gerald. Germaine reveals to Gerald that she is not in fact Chou-Chou and decides to return to Paris, but Gerald catches up to her in a gondola and asks her to marry him.