Nella is sure she's a goner after she witnesses an assassination on a train. Especially after she is captured by the killer himself. After her desperate escape attempt, she wakes in an attic, surrounded by a family of trained murderers. But the one responsible can't seem to dispense of the problem: her.

This surprising ally makes her question her plans of escape. Especially when she starts to have feelings for him. Maybe she can find a happy life with this unpredictable family after all?