The Fatal Hour (1940)

SFPD Detective Dan Grady's murdered body is pulled from San Francisco Harbor, the news hitting his friend and colleague Captain Bill Street hard. Assisting Street in the investigation is PI James Lee Wong, who Street believes may be able to provide his Asian expertise in Grady, working on his own, having been on a smuggling assignment, most goods into the harbor, where Grady seemed to have based his operation in having been found in a seaman's uniform, coming from East Asia. Also inserting herself into the investigation is Herald reporter Bobbie Logan, with who Street has a love/hate relationship, the hate in she being a thorn in his professional side in doing anything for the exclusive scoop. The investigation has two initial leads, one to Belden's Jewelers, Frank Belden who is close to going into receivership. The other is the Neptune Cafe, run by shady businessman "Hardway" Harry Locket. While the investigation goes full circle in there being a tie between Belden and Locket, the question Wong, Street and Logan have to answer is who pulled the proverbial trigger, the suspect list which extends to people in Belden and Locket's orbit.