AllMovie

The poverty-row origins of Special Agent K-7 are made doubly obvious by its all-bit-player cast. Walter McGrail essays perhaps the largest role in his talkie career as police detective Lanny, who resents the ongoing interference of the local FBI branch. Hoping to show up the feds, Lanny tackles a baffling espionage case all by his lonesome. Things heat up when his gal-reporter sweetheart Ollie (Queenie Smith) is framed for murder by the villains. The actual killer is so obvious to the audience that one contemporary suggested that he shone like a beacon on the screen. Leading lady Queenie Smith, best known for her performance of the soubrette Elly in Show Boat (1936), went on to a long career in character roles, and for a while played the landlady in the "Bowery Boys" series of the 1950s.