After a four-week partner swap, two couples meet again in a remote beach house and discover that everything has changed. Suddenly, their feelings are put to the test and they start reevaluating their life choices and expectations.
Two couples visit a home from their past, and sexual tension brings out the worst in each other. Long-buried grudges resurface.
Sonia (Svenja Jung) breaks the perhaps most exciting time of her life, because the 20-year-old moves to Berlin for a mathematics study. Once there, she soon began to build up a new circle ...