Ade penthouse and sparkling Aperol, ahoy attic room and lukewarm Beugelbuddel beer! When Désirée's affluent partner Christoph mysteriously disappears during a sailing trip at Kiel Week, she finds herself in deep water, and as if that weren't enough, Irma, the future mother-in-law, shows up at her doorstep. What must be, must be? Equipped with hastily packed designer suitcases and a second-class Schleswig-Holstein ticket, the mismatched duo of women embarks on a chaotic journey into a life Désirée has long suppressed: that of Deetje, the Sylter girl, daughter of Hinnerk, a shell fisherman known for his bright yellow Chuck Taylors. Will Christoph reappear, just so Désirée can send him to the moon for this involuntary encounter with shell soup and seagull droppings? Or is there more North Frisian in Désirée than she is aware of?.