First broadcast 29th September 1975.
Carter's schoolteacher wife Alison is killed by a hit-and-run driver while posting his football pools.
John Thaw - Regan
Dennis Waterman - Carter
Garfield Morgan - Haskins
Gary Waldhorn - Alan Fowler
Sheila Ruskin - Judy Grinden
Patrick Troughton - Reg Crofts
Stephanie Turner - Alison Carter
Margaret Whiting - Fladge
Michael Sheard - Mr. Penketh
James Snell - Johnny Moxom
Liz Smith - Mrs. Davies, Landlady
Terry Bale - Minicab Operator
Katherine Parr - Mrs. Carter
Tony Allen - Bill the Driver
Aidan Harrington - Detective
Bill Hibbert - Detective
Lou Morgan - Constable
Stuart Myers - Detective
Reg Turner - Constable
