Manuel is a criminal from South of the border, but has hopes of becoming a legitimate citezen to maintain his lifestyle of crime. When he gets into a disagreement with his mobster girlfriend, he kills her. A most unusual phone call comes to Dr Danfield that gets his curiosity up, and involved with tracking down Manuel. Clues turn up that make it unclear whether Manuel was the killer, or the killed, but Doc Danfield is hot on the case.
Dan takes his girlfriend, Miss Fairfax to the mobster mansion for some snooping around, but are greeted by the aledged wife of Manuel. This won’t be dangerous, will it? Using a little psychology against the greedy gangsters, and armed with legal evidence, Dr Danfield has a trap ready to spring into action. There are a few loose ends that Dr Danfield is more than willing to share with Miss Fairfax at the end.