After Dr Crosby is found dead in the street, after being hit by a taxi though the gunshot wound is what really killed him, Inspector Thomas (Alan Dinehart) goes into investigate.
There are a number of suspects including a woman (Wynne Gibson) who's slipper was found in Crosby's apartment and also the man (Onslow Stevens) who owns the gun which killed Crosby! All of the suspects are somewhat shady characters, as was the victim in this pre-Code film.
A fine crime drama, with themes and characters (including abortion) which would soon be forbidden in Hollywood films. The solving of the crime hangs on an eyewitness whom the police did not seem to realise was as blind as a bat for some reason!