An elderly gentleman lies dead in bed. For the employees of the Cologne funeral home, this is nothing unusual. Apparently, Mr. Dressler died of tuberculosis. But then bloodstains are found on the headrest, and one of the undertakers discovers a bullet. So it was no ordinary death after all!
Assistant PI Bulli is hired to find Marie Banse. He does, she is married to Thomas, they have a pretty daughter, Lore. Bulli falls for her, delivers their heritage of 5000 Marks and tries to find out who the unknown benefactor is.