Two men working on the docks close to London's Tower Bridge find the body of an unidentified man floating in the Thames. The police later identify the body to be that of a diamond courier from Holland. The police have to find his murderer, as well as the missing diamonds he was carrying.
as Alexander James
as Victor Skinner
as Rose Reid
as Snow White
as Inspector Cathie
as Mr. Wynn
as Philip Reid
as Collis
as Otto
as Delbos
as Hattie's Maid (uncredited)
as Gaoler (uncredited)
