The horse trainer Wiebke adopts Melva from abroad, but soon she has to learn that the girl suffers from an attachment disorder and does not build an emotional connection to anybody around her. Melva constantly puts others in great danger, especially her older adoptive sister Nicola. After a neurologist explains that Melva will have life-long troubles and does not feel any empathy, Wiebke has to decide whether she is willing to keep her and risk Nicola’s well-being.