Diabolic

Nov 20, 2025 Horror · A tight 95 minutes that builds slowly before unleashing its horror in the final act.
Modest reception
6.0/10
IMDb
2.52/5
Letterboxd
🎬
6.3/10
TMDB
Rewatch
one and done
Attention
full focus
Phone-check
low

The brief

Daniel J. Phillips delivers a surprisingly grounded possession horror that earns its scares through atmosphere rather than cheap jumps. Elizabeth Cullen anchors the film with a desperate, increasingly unhinged performance as medical hope curdles into supernatural dread, while the witch mythology feels genuinely menacing instead of derivative. The pacing builds slow burn tension until the final act unleashes some genuinely disturbing imagery that sticks with you. Perfect for fans of The Conjuring or Sinister who want their supernatural horror rooted in real human desperation.

slow-burn possession desperate medical horror witch mythology atmospheric dread grounded supernatural building tension

The verdict

If you appreciate slow-burn supernatural horror that builds genuine dread through atmosphere and strong performances rather than relying on jump scares, this is a solid entry that delivers genuinely disturbing imagery. If you prefer fast-paced horror or can't tolerate deliberate pacing in the buildup, the measured approach may test your patience before the payoff arrives.

Watch with

  • 👥 Horror fans who appreciate atmospheric scares
  • 👤 Those seeking genuinely unsettling supernatural stories
  • ⚠️ Anyone sensitive to possession/witchcraft themes

Heads up

  • Supernatural possession and body horror (moderate)
  • Disturbing imagery in final act (moderate)
  • Medical desperation and illness themes (brief)
  • Witch/occult rituals and imagery (moderate)

Credits

Director
Daniel J. Phillips
Cast
Elizabeth Cullen, John Harlan Kim, Mia Challis, Genevieve Mooy, Robin Goldsworthy
Official synopsis

A woman's hope for a miracle cure turns into a nightmare when she confronts the vengeful spirit of a cursed

The Double

Make a night of it
Poster for The Morrigan

Pair this with The Morrigan (2026)

Both feature vengeful supernatural entities targeting women through ancient curses.

Total runtime: 1h 35m + 1h 36m = 3h 11m

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