A beautiful woman, Kate (Tina Grenville), is released from a sanatorium unaware that while she was away her husband John (George Lazenby) has begun an affair with her sister Marianne (Wendy Hughes). The two sisters live together in a creepy apartment block while John is away, and find themselves stalked by some mysterious strangers.
Unfortunately the movie Is There Anybody There? is not yet available on HBO Max.
| Directing | Peter Maxwell | Director |
| Editing | Colin Waddy | Editor |
| Writing | Bruce A. Wishart | Screenplay |
| Sound | Bob Young | Music |
| Production | David Hannay | Executive Producer |
| Crew | Russell Boyd | Cinematography |
| Sound | Cliff Curll | Sound Recordist |
| Sound | Peter Fenton | Sound Mixer |
| Art | Mike Fallon | Art Direction |
| Costume & Make-Up | Josy Knowland | Makeup Artist |
| Production | Robert Bruning | Producer |
| Crew | Heath Harris | Stunt Coordinator |
