While mainland Britain shivers in deepest winter, the northern island of Fara bakes in the nineties, and the boys at the Met station have no more idea what is going on than the regulars at the Swan. Only a stand-offish visting scientist realizes space aliens are to blame.
Unfortunately the movie Night of the Big Heat is not yet available on HBO Max.
| Directing | Terence Fisher | Director |
| Writing | John Lymington | Novel |
| Crew | Pip Baker | Additional Writing |
| Writing | Ronald Liles | Screenplay |
| Crew | Jane Baker | Additional Writing |
| Camera | Reginald H. Wyer | Director of Photography |
| Art | Alex Vetchinsky | Art Direction |
| Production | Tom Blakeley | Producer |
| Editing | Rod Nelson-Keys | Editor |
| Sound | Malcolm Lockyer | Original Music Composer |
| Production | Ronald Liles | Associate Producer |
| Directing | Ray Frift | Assistant Director |
| Sound | E. Karnon | Sound Recordist |
| Sound | Malcolm Lockyer | Music Director |
| Costume & Make-Up | Kathleen Moore | Wardrobe Supervisor |
| Sound | Dudley Messenger | Sound Recordist |
| Costume & Make-Up | Geoffrey Rodway | Makeup Artist |
| Costume & Make-Up | Stella Rivera | Hairstylist |
