First broadcast 9th January 1983.
Charity worker Susan Grant is being terrorized by a masked stalker and, whilst the police are sceptical of her story, Cowley, who knew her father, believes her.
Gordon Jackson - George Cowley
Martin Shaw - Doyle
Lewis Collins - Bodie
Sheila Ruskin - Susan Grant
Alan MacNaughtan - Henry Laughlin (as Alan MacNaughton)
Rona Anderson - Mrs. Grant
David Neal - Bauer
Ian Bartholomew - Miller
Simon Templeman - Neville Grant
Timothy Block - Smith
Zoe Gonord - Joan
Barrie Cookson - Mason
Iain Blair - Sergeant Watson
Rex Robinson - Superintendent
Vass Anderson - Doctor
Aimée Delamain - Old Lady
Duncan Miller - Sergeant
Rob Heyland - P.C.
Arthur Nightingale - Night Porter
Shirley English - Lady
