Filmmaker Daniel J. Phillips’ DIABOLIC is an award-winning Australian horror film that fuses religious mysticism with modern psychological terror, crafting a nerve-shredding tale of repression, trauma, and revenge.

Haunted by violent blackouts and disturbing impulses, Elise (Elizabeth Cullen, Elvis) teeters on the brink of institutionalisation. At the urging of her psychiatrist, she returns to the isolated religious settlement where she was raised to confront her past through exposure therapy — a healing ceremony led by the Fundamentalist Latter-Day Saints.

But the ritual awakens something far darker.

Unbeknownst to those involved, the ceremony unleashes the vengeful spirit of a long-buried witch, triggering a terrifying chain of events that blurs the line between psychological breakdown and supernatural possession.

DIABOLIC also stars John Kim (The Little Things) as Elise’s husband, Adam, and Mia Challis (Outer Banks) as her loyal best friend, Gwen.

Since its international festival premiere, DIABOLIC has received critical acclaim from professional film critics and horror outlets worldwide, with particular praise for Elizabeth Cullen’s performance and its chilling exploration of religious trauma.