From IMDb: Only the possibility of avoiding a Tong War, plus persuasion by reporter Bobbie Logan leads the famous detective James Lee Wong to enter the Wentworth case. A million and a half dollars in bonds was taken from one of Cyrus P. Wentworth's ships before it was mysteriously sunk and, shortly afterward, Wentworth was found murdered. The police, led by Detective Captain Bill Street, suspect Dick Fleming, fiancée of Wentworth's daughter Cynthia. Wong clears Dick but has difficulty in finding the trail of the mysterious killer.
Stars: Boris Karloff, Grant Withers and Marjorie Reynolds
This movie can also be found at The Internet Archive here and here.