After her husband's abrupt death, Alice seeks solace with his remaining family — descendants of a leading researcher on demonic possession. As her in-laws transform one by one into creatures that feed on fear, she comes to discover that the vows she took in life survive even in death.
| Actor | Role |
|---|---|
 Souheila YacoubAlice | Alice |
 Tandi WrightSusan | Susan |
 Hunter DoohanJoseph | Joseph |
 Luciane BuchananThya | Thya |
 Erroll ShandEdgar | Edgar |
 Maude DaveyPolly | Polly |
 George PullarWill | Will |
 Greta van den BrinkJessica | Jessica |
 Keanu KarimJared | Jared |
 Victory NdukweLeo | Leo |
 Tapiwa SoropaServer (Mike) | Server (Mike) |
 Lara MacgregorManager | Manager |
 Shyamal SinghCremator (Jake) | Cremator (Jake) |
| KKeagan Carr FranschFirefighter | Firefighter |
| JJustin BennTaxi Driver | Taxi Driver |
 Coco WhiteManager's Daughter | Manager's Daughter |
| DDaxMax (The Dog) | Max (The Dog) |
| ZZoë BruntonWoman | Woman |
 Michael HurstBenjamin Price (voice) | Benjamin Price (voice) |
 Alain ChabatAlice's Father (voice) | Alice's Father (voice) |
 Alyssa SutherlandEllie | Ellie |