Ama, Senta and Klara are sisters in their thirties and couldn't be more different. Ama studies medicine, Senta is a dedicated prostitute and Klara is more of a house maker, who desperately wants a child, even if it is from her abusive, lorry driver husband. Their parents, Rosa and Erich (who suffers from dementia) are tucked away in and old peoples home, which affords the girls some peace and quiet. The home proves expensive so Ama and Senta, in a pang of conscience, are obliged to share a flat in order to pay the high costs. Ama has asked Senta to suspend her occupational pursuits until she has graduated from medical school, as Senta's brothel also happens to be frequented by Ama's fellow students and thus has no wish to be associated with her sister. One day Ama and Senta find their sister Klara lying badly beaten against their front door. They take her in and give her shelter. However, as a result of the beating Klara loses child she was carrying. Markus, the husband responsible, wants her back. And in the girls' flat an argument ensues, resulting in fatal consequences for Markus, of which none of the sisters is entirely innocent...