Lisa, once a brilliant playwright, no longer writes. She lives with her family in Switzerland, but her heart remains in Berlin - with her twin brother Sven, the famous stage actor. The siblings have become even closer since Sven was diagnosed with aggressive leukemia. Lisa refuses to accept this stroke 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 off the rails, 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.