1 9 5 6 (UK)
6 x 30 minute episodes
This six-part serial from the BBC adapted the Francis Durbridge thriller which was serialised in the Radio Times.
Dr Howard Latimer
Stephen Murray
Detective Inspector Dane
John Arnatt
Nurse Kay
Anne Ridler
Ken Palmer
Francis Matthews
Laura James
Gillian Raine
Geoffrey Windsor
Bryan Coleman
Dr George Kimber
Geoffrey Chater
Robert Brady
Rupert Davies
Grace Frobisher
Ena Moon
Charles Kaufmann
Marvin Kane
Frieda Veldon
Marianne Brauns
Walt Armstrong
Victor Brooks
