A police captain poses as the valet of a friend who has been invited on a yacht cruise by a notorious schemer, whom the friend is afraid wants to murder him.
Jack Raine
Jean Colin
Jameson Thomas
Randle Ayrton
Carl Harbord
Henry Victor
Allan Jeayes
Maria Minetti
Charles Dormer
Ivo Dawson
Edna Davies
Syd Crossley