Set in the Summer of 1988 and based on real events, the film tells the story of East-German twins Isabel and Doreen, two aspiring oarswomen, whose lives are changed dramatically during a training camp at Lake Balaton in Hungary. There, the girls make the acquaintance of West-German friends Arne and Nico. The holiday flirt soon turns serious when Doreen and Arne fall in love. As the end of their stay approaches, Arne asks the inseparable sisters to flee to the West with him…