An adaptation of Daphne du Maurier's 1966 short story of the same title, broadcast as part of the BBC's "BBC2 Playhouse".
Acting
Simon Ward's hollow-eyed desperation carries the entire runtime
Direction
Evans wrings genuine dread from beige offices and oscilloscopes
Director
Graham Evans
Trivia, insights & behind the scenes
Du Maurier's original story was inspired by early electronic voice phenomenon research, making this possibly the first screen depiction of 'ghost hunting' via technology.
The BBC wiped many 1970s Playhouse episodes; this survives only via a 16mm telerecording discovered in 2008.
GB
