Ed Harwood, a wisecracking private investigator from New York, discovers a crime at a hotel in Nice during a carnival. The unraveling of the mystery which lies behind will lead him and Caryl Fenton, a female insurance agent, who will become his companion, first to Paris, then to London, later through the English countryside and finally to Southampton, in search of a criminal train wrecker.
Edmund Lowe
as Harwood
Constance Cummings
as Caryl Fenton
Thomy Bourdelle
as Paul Turbé
Henry Oscar
as Axel Hoyt
Felix Aylmer
as Sir Charles Webber
O.B. Clarence
as Registrar
Allan Jeayes
as Wagner
Anthony Holles
as Reception Clerk
David Horne
as Hotel Manager
Edwin Laurence
as Guildhall Guide
James Harcourt
as Vicar
Margaret Davidge
as Housekeeper (Uncredited)
