Mrs. Irma Westermühl rushes terrified at night to Dr. Franck asking him help with her husband Alfred, who is threatening to commit suicide in his workshop, but right when they reach him the workshop blows up. But when Dr. Franck brings Mrs. Westermühl home, he notices that her husband is alive in the house: surprised, Alfred Westermühl kidnaps him and locks him in the cellar. Matula has then to search for his missing boss.
—AleX_DJ