A womanizing journalist is on the outs with the cops who want him in jail and a mysterious "thin man" who wants him dead.

The nameless journalist from Murder in the Dark receives two shocks in quick succession. First, his good friend Kurt is murdered, and then his editor-in-chief sends him to the provinces! Here, a prostitute has been killed at the brothel "Paradise." An apparently insane knife attacker has been arrested. But there is something fishy about the whole thing. A picture of the arrested man's attractive defense attorney entices our hero, and he is thus swept into a series of exciting events that take him behind the city's pretty facade...