Bill Rock went to the burlesque show, on a hunch that he could gather a little information his boss, the District Attorney, needed in his fight on the vice ring. The fourth girl from the left was a likely looking one to Bill. He made a date to see her, though going backstage led to a row with Mullins, the manager. Bill had to knock him out, which was going to be the start of plenty of trouble for this "D. A.'s dick."
Bill worked on the quiet, for the police department had their own ideas of a vice investigation—ideas which didn't include giving any credit to the D. A. So when Bill went to the stripteaser's room and found her dead, he wanted a crack at solving the crime in his own way. The vice squad men arrived at the same time, however, took Bill away, booked him for the girl's murder.
How Bill got away, the shootings and escapes that followed, form the basis of this exciting and ingenious story. Bill is led to suspect his girl Karen (the D. A.'s secretary), his sister and brother-in-law, star reporter on O'Melveny's paper. The strange relationship of all these with glamorous, jewel-bedecked, once-beautiful Diamond Annie leads to a thrilling climax to this fast-moving mystery.