A company's stockholders hold their meeting at a lonely mansion. A mad doctor conducting experiments in the mansion starts to strangle them one at a time with a nylon noose. The survivors must figure out a way to stop him.

Christa Andres runs a home for troubled girls. With great dedication, she tries to help girls who have gone astray return to a normal life. She takes special care of Erika, who works as a prostitute and one day runs away from the home. Christa sets out to search for the girl in the red-light district. In doing so, she is haunted by the shadows of her own past. The educator herself used to work as a prostitute. When she meets her former pimp, he tries to exploit his knowledge in a perfidious way and blackmail Christa...

On a summer morning, the opening of the trial in the Zurich District Court is scheduled for 8 a.m. The case of Marlene Faber and Nick Merk's divorce is being heard on the grounds of "mental cruelty." The couple is waiting outside the courtroom for their divorce and is reliving their marriage: from the honeymoon to the first quarrels and the end.