A body is found, and Marie Brand and Jürgen Simmel are called to the scene. It looks like the woman, Annika Herforth, was pushed down the stairs leading to the basement. Annika’s sister Nelly immediately tells the investigators that she suspects Florian Leffers of having done it. In her statement, she says that Annika’s ex-boyfriend Florian has been stalking and threatening her. Florian, however, appears to have an alibi.