Where to stream

The Diabolical

5.020151h 26mMovieHorrorScience FictionThriller

When a single mother and her two young children are tormented by an increasingly strange and intense presence in their quiet suburban home, she turns to her scientist boyfriend to take on the violent forces that paranormal experts are too frightened to face.

DirectorAlistair Legrand

WritersAlistair Legrand·Luke Harvis

Where to watch

Plex

Availability shown for Australia · rights vary by country

Cast · Directed by Alistair Legrand

Ali Larter

Arjun Gupta

Chloe Perrin

Joe Egender

Patrick Fischler

Patrick Fischler

Wilmer Calderon

Wilmer Calderon

Tom Wright

Curtis (as Thomas Wright)

Merrin Dungey

Kurt Carley

Laura Margolis

Mark Steger

More from Ali Larter · Lead actress

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More from Arjun Gupta · Co-star actor

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The Diabolical — streaming FAQ

Which OTT platform streams The Diabolical?

The Diabolical is streaming on Plex in Australia, and available to rent or buy on Google Play Movies and YouTube. It's not currently on Netflix.

Is The Diabolical on Netflix?

No, The Diabolical is not on Netflix in Australia as of September 2026. It's currently on Plex.

Is The Diabolical on Amazon Prime Video?

No, The Diabolical isn't on Amazon Prime Video in Australia right now. It's on Plex instead.

Where can I watch The Diabolical for free?

The Diabolical is available to stream free (with ads) on Plex in Australia.