Lisa, once a brilliant playwright, no longer writes. She now lives with her family in Switzerland, but her heart remains in Berlin – with her twin brother Sven, a renowned stage actor. Since his diagnosis with aggressive leukemia, their bond has grown even stronger. Refusing to accept his fate, Lisa does everything in her power to bring Sven back to the stage. He is her soulmate, and she neglects everything else for him. Even as her marriage begins to crumble, her focus remains solely on her brother, who mirrors her deepest desires – he reignites her longing to create and feel truly alive.