The Perfect Sap

Wealthy young Herbert Alden, a would-be detective, is practicing housebreaking with his valet, an ex-convict, when he meets George and Polly, two real thieves; they are discovered and, following a chase, they go to Herbert's city apartment. George arranges with one of them, Tony-the-Lizard, to rob the guests at a ball given by Herbert's father at his country home. Herbert discovers that Tony is Tracy Sutton, a social lion engaged to Herbert's sister Roberta; and believing Herbert to be a famous criminal, Tony seeks his advice.

• Howard HigginDirector
• Howard Irving YoungWriter

• Ben LyonHerbert Alden
• Virginia Lee CorbinRuth Webster
• Lloyd WhitlockTracy Sutton
• Diana KaneRoberta Alden
• Byron DouglasStephen Alden
• Christine ComptonMrs. Stephen Alden
• Charles CraigFletcher
• Sam HardyNick Fanshaw
• Tammany YoungGeorge Barrow
• Helen RowlandCissie Alden
• Pauline StarkePolly Stoddard