Paul has all he wants to be happy: a stable job, a beautiful and loving wife who is expecting their first child, a lot of friends. On his 37th Birthday though, within a single day, everything is about to change. In the mythical Parc of the ex-Berlin Tempelhof airport, he runs into a mysterious Stranger, who will make him doubt about his life and invite him to open his ears. From that moment, he will experience the rest of the day with a total unexpected turn..