ENT doctor Katrin Schwitters (Anna Schudt) meets a charming stranger (Mark Waschke) on a training trip who brazenly introduces himself as a Russian secret agent. Due to a storm, the two are stranded on an island in the North Sea and spend a wondrously playful evening together. Katrin also slips into the role of an agent on a secret mission - "real" life is left out of this exciting flirtation. For Katrin, who always has to have everything under control, there is no question that this one-off encounter will last. But adventure meets security, seduction meets structure and nothing is as it was before. When she returns to her well-ordered everyday life with her husband Mark (Felix Klare) and their two children Elisa (Luisa Helmer) and Bastian (Tom Gronau), she can't get the chance encounter out of her mind.
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