
Two Scotland Yard detectives investigate the murder of a young woman of mixed race who had been passing for white. As they interview a spate of suspects -- including the girl's white boyfriend and his disapproving parents -- the detectives wade through a stubbornly entrenched sludge of racism and bigotry.

as Superintendent Robert Hazard

as Inspector Phil Learoyd

as Mildred

as David Harris

as Ted Harris

as Mrs. Harris

as Dr. Robbins

as Paul Slade

as Student

as Detective Whitehead (uncredited)

as Sapphire Robbins

as Patsy

as Horace Big Cigar

as Police Constable

as Lingerie Shop Manageress

as Student

as Sgt. Cook

as Ferris

as Barman

as Johnnie Fiddle

as Sapphire's Landlady

as Man on the Street

as Police Sgt.

as Doctor Burgess

as Lily

as Newsagent's Wife

as Johnnie Fiddle's Landlady

as Girl at Tulip Club

as Nightclub Owner

as Student

as Newsagent

as Mr. Young

as Pianist in International Club

as Student

as Doctor at Crime Scene

as Boy

as Student (International Club)

as Bit Part

as Youth

as Woman in Street

as Dancer in Nightclub

as Police Constable