Hammer House of Horror - Season 1 - Eps 7: The Silent Scream
A hard-up young convict, Chuck Spillers, strikes up a friendship with Martin Brueck, an elderly prison visitor who owns a pet shop. When Chuck is released, he is glad to take a job working in the shop where Martin reveals he keeps a number of large cats in cages and is experimenting in controlling animals by electrical force fields and bells. Unfortunately for Chuck, his desperate need for money lures him into danger.
About Hammer House of Horror

Title: Hammer House of Horror
First Air Date: 1980-09-13
Last Air Date: 1980-12-06
Status: Ended
Rating: 7.1/10 (from 68 votes)
Language: EN
Seasons: 1
Total Episodes: 13
Network: ITV1
Genres: Mystery, Drama
Production Companies: Chips Productions, Cinema Arts International Production, ITC Entertainment, Hammer Film Productions
Synopsis
Anthology series, in which each self-contained episode featured a different kind of horror. These varied from witches, werewolves, ghosts, devil worship and voodoo, but also included non-supernatural horror themes such as cannibalism, confinement and serial killers.