Diana Markus, a convicted killer, uses a man named Bergmann to break her out. He started writing to her in prison and believes himself to be in love with her. It doesn't take Moser long to track them down, but it is Rex who must provide Moser with a view into the room to make sure all goes without anymore deaths.

Martin Wolf owns a doll shop. Although he appears to be an average man, he hides a deadly secret. He gets women to pose in a dress as a lifesize doll, when they refuse, he murders them. After killing one woman though, a little girl across the street sees him put her into the boot of his car...will she become his next victim or will Rex save her in time?