
Released
IMDb
The story evolves around a radio panel game show "Twenty Questions." The panel is challenged with an anonymous question. The answer leads to a series of murders in which the killer uses the programme to name his victims in advance. Two reporters spot a link between them and enlist the aid of the panel in trapping the guilty party.
Keywords
radio program
serial killer
Casts

Robert Beatty
Bob Beacham

Rona Anderson
Mary Game

Clifford Evans
Tom Harmon
Edward Lexy
Det. Insp. Charlton

Olga Lindo
Olive Tavy
Daphne Padel
Self - The Twenty Questions Team

Jeanne De Casalis
Self - The Twenty Questions Team guest artiste
Jack Train
Self - The Twenty Questions Team
Stewart MacPherson
Self - The Twenty Questions Team
Norman Hackforth
Self - The Twenty Questions Team 'Mystery Voice'

Richard Dimbleby
Self - The Twenty Questions Team
Harold Scott
Maurice Emery KC

Liam Redmond
Echo News editor
Homi Bode
Mohammed Ali

Kynaston Reeves
Gen. Maitland
Sonya O'Shea
Stewart MacPherson's secretary

Frederick Leister
Police Commissioner

Wally Patch
Police Officer 'Tiny' White

John Salew
John Grimshaw

Gordon McLeod
Record News editor
Philip King
Cheshire Cheese waiter

Arthur Young
Doctor

Merle Tottenham
Mrs. Tavy's Neighbour (uncredited)
Meadows White
Frederick 'Ricky' Tavey (uncredited)
Crews
Paul L. Stein
Director
Don Russell
Art Direction
Victor Katona
Screenplay

Gerald Thomas
Editor
Patrick Kirwan
Screenplay
Ernest Palmer
Director of Photography
Hans May
Original Music Composer
Hal Britten
Camera Operator
Victor Katona
Producer
John O'Gorman
Makeup Artist
Jane Seymour
Makeup & Hair
Backdrops & Posters
