Michael (Christian Ummon Christian Ulmen) and Bruno (Moritz Brado Moritz Bleibtreu) are half-brothers who own diametrically opposite personalities. Michael is a biologist who specializes in genetics, immersed in research and out of touch with the opposite sex. Bruno, as a teacher, lingers among thousands of flowers every day. He never believes in love, plays with women in applause, and even has an improper relationship with his young students. One day, Bruno met a woman named Christina (Martine Godett Martina Gedeck). For the first time, Bruno experienced the taste of love. On that side, Michael meets the gentle and kind Annabel (Franka Potent Franka Potente) and falls in love. Unfortunately, the tragedy soon befell the two brothers.