An architect (Chick Chandler) studies the doors of six shops and an apartment house to solve a gem theft/double murder.
Chick Chandler
as Jimmy McMillan
June Clyde
as Mary Rawling
George Meeker
as Charles Eaton
Michael Raffetto
as Capt. Wm. Jaffe
Gregory Gaye
as Henry Butler aka Gregor (as Gregory Gay)
Edgar Dearing
as Claude Burns
Rebel Randall
as Mable De Rose
Milton Wallace
as Donald Adams
Casey MacGregor
as Timothy Green
Gene Roth
as Detective Morgan (uncredited)
