The corpse of Kah-To-Bey, a son of a Pharaoh who fled to the Egyptian desert after a coup, is discovered from its makeshift tomb and is brought to the civilization. This makes the guardian of the said tomb give life to the mummified remains of Kah-To-Bey's late servant Prem, who then starts killing everyone involved in the tomb's desecration.
This film has the examples of:
- An Axe to Grind: Paul attacks Prem with one to no effect. Prem then attempts to use it against him and Claire.
- Comicbook Adaptation: The film was adapted in comic strip form on House of Hammer magazine.
- Crystal Ball: Tomb guardian Hasmid's mother, who works as a clairvoyant, has one in her possession. It is used to spy on the would-be victims of the mummy Prem.
- Death by Childbirth: Kah-To-Bey's mother died soon after his birth in the past.
- Destination Defenestration: Prem kills Longbarrow by wrapping him in his mosquito net and throwing him through his bedroom window to his doom.
- Double Take: The servant who is about to taste the wine from his secret stash takes a glance at the corpse next to him, takes another look with eyes widened in horror, and runs away screaming.
- Eye Awaken: Used when Prem is awakened, with the rot covering his eyes falling off.
- Failed a Spot Check: The servant who is about to taste the wine in his closet stash conveniently looks the other way when he opens its doors which have a corpse pinned to them.
- Glory Hound: Stanley Preston quickly hogs all the gloy of finding Kah-To-Bey to himself, and doesn't mind it all that Sir Basil is committed to the madhouse.
- Villain Ball: As Claire starts residing the words that would destroy Prem, Hashmid laughs mockingly at her and proclaims that only the person holding Kah-To-Bey's shroud can do it properly, while shaking it in his fists. Inspector Barrani then shoots him so that Claire can take the thing.