The Trans-Atlantic Mystery

A couple of murderous crooks try to smuggle the famous Stanhope diamonds into New York but they're double-crossed and killed before reaching New York.

• Joseph HenaberyDirector
• S.S. Van DineWriter

• Donald MeekDr. Crabtree - Criminologist
• John HamiltonInspector Carr
• Betty PierceDaisy
• Harry T. MoreyShip's Captain
• Ray CollinsWaite
• Walter KingsfordDodge - Miller's Valet (uncredited)
• Charles C. WilsonDetective Doyle (uncredited)