Daniel and Thomas are two friends who are trying to catch girls in various therapy groups.
It's Men's Day, Men's Day, Father's Day, Ascension Day - many terms, one date, but always a reason to celebrate. Having just finished school, five Bavarian friends start a common tradition: Every year they want to get together on Men's Day and douse their friendship properly. But every good resolution eventually dies, and so after 20 years most of them lost contact.
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…
