A quiet, middle-aged couple living in Chelsea start to receive threatening letters through the post - and then things take a sinister turn as their beloved poodle, Tina, is kidnapped. A smart young copper from the local force decides to investigate -
| Actor | Role |
|---|---|
 Zena WalkerGina Reynolds | Gina Reynolds |
 Benjamin WhitrowEdward Reynolds | Edward Reynolds |
| BBrian StirnerClarence Duhamel | Clarence Duhamel |
 Paul AngelisTom Choley | Tom Choley |
| LLeon EaglesKowajinski | Kowajinski |
 Susie BlakeMarion Dowell | Marion Dowell |
| FFrank WylieInspector Craig | Inspector Craig |
 Prentis HancockDesk Sergeant | Desk Sergeant |
 Maryann TurnerLandlady | Landlady |
| NNeville BarberChief Superintendent | Chief Superintendent |
 David HargreavesKen Holbrook | Ken Holbrook |
| RRay ArmstrongDuty Inspector | Duty Inspector |
| IIrene SutcliffeMagistrate | Magistrate |
 Linal HaftCookson | Cookson |
| HHarold ReeseClerk of the Court | Clerk of the Court |
 Petronella BarkerGillian | Gillian |
 Rayner BourtonJim | Jim |
| SSteve BarrattWillis | Willis |
 Herbert NorvilleAhmed | Ahmed |
| PPhilip PollittTommy | Tommy |
| DDerry JordanJacko | Jacko |
| FFrank DuncanAnnouncer (voice) | Announcer (voice) |
| CChristopher ReichBox | Box |