Suspicion (Season 1)

Plain Jane (Episode 1)

Writer: Vincent Tilsley

Air date: 1971-11-23

Off Season (Episode 2)

Writer: Marc Brandel

Air date: 1971-11-30

I Can See Your Lips Move (Episode 3)

Writer: Richard Harris

Air date: 1971-12-07

Overview: Harry an old time ventriloquist discovers somebody wants him dead.

I'll Go Along with That (Episode 4)

Writer: Roger Ormerod

Air date: 1971-12-14

Overview: Private investigator Early traces Janet a missing wife, he takes her to her home but finds her husband (a detective) is interviewing another man who also says his wife as gone missing.

No Case to Answer (Episode 5)

Writer: Lewis Greifer

Air date: 1971-12-21

Old Man's Hat (Episode 6)

Writer: Fay Weldon

Air date: 1972-01-04

Reasonable Doubt (Episode 7)

Writer: Brian Clemens

Air date: 1972-01-11

Overview: Keller takes a room in a private hotel where 15 years previous an unsolved murder of a girl happened. His mannerisms and habit of playing the piano all night raises suspicions that he might have a connection?

Nobby's Turn (Episode 8)

Writer: Roy Minton

Air date: 1972-01-18

The Resting Place (Episode 9)

Writer: Susan Pleat

Air date: 1972-01-25