Lisa, once a brilliant playwright, no longer writes. She lives with her family in Switzerland, but her heart has remained in Berlin - with her twin brother Sven, the famous stage actor. Since he fell ill with aggressive leukemia, the siblings have become even more close. Lisa refuses to accept the blow of fate and pulls out all the stops to get Sven back on stage. He is her soulmate, for whom she neglects everything else. Even when her marriage goes awry, she only has eyes for her brother, who reflects her deepest longings: he awakens in her the desire to be creative again, to feel alive.