
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.
Genres:

Robert Beatty as Bob Beacham

Rona Anderson as Mary Game

Clifford Evans as Tom Harmon

Edward Lexy as Det. Insp. Charlton

Olga Lindo as Olive Tavy

Daphne Padel as Self - The Twenty Questions Team

Jeanne De Casalis as Self - The Twenty Questions Team guest artiste

Jack Train as Self - The Twenty Questions Team

Stewart MacPherson as Self - The Twenty Questions Team

Norman Hackforth as Self - The Twenty Questions Team 'Mystery Voice'

Richard Dimbleby as Self - The Twenty Questions Team

Harold Scott as Maurice Emery KC

Liam Redmond as Echo News editor

Homi Bode as Mohammed Ali

Kynaston Reeves as Gen. Maitland

Sonya O'Shea as Stewart MacPherson's secretary

Frederick Leister as Police Commissioner

Wally Patch as Police Officer 'Tiny' White

John Salew as John Grimshaw

Gordon McLeod as Record News editor

Philip King as Cheshire Cheese waiter

Arthur Young as Doctor

Merle Tottenham as Mrs. Tavy's Neighbour (uncredited)

Meadows White as Frederick 'Ricky' Tavey (uncredited)
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