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Delirium (2018 film)

Delirium is a 2018 American supernatural psychological horror film directed by Dennis Iliadis and written by Adam Alleca.

By Ethan Anderson| Reviewed by Olivia Bennett, Standards & Fact-Checking Lead| Updated July 27, 2026|2 min read| Fact-checked

Delirium is a 2018 American supernatural psychological horror film directed by Dennis Iliadis and written by Adam Alleca. It stars Topher Grace, Patricia Clarkson, Callan Mulvey, and Genesis Rodriguez. The story follows a man who inherits a mansion after leaving a mental institution and begins to suspect the house is haunted.

Premise

The film follows Tom, a man recently released from a mental institution who moves into his late parents’ mansion. After a series of disturbing events, he begins to question whether the house is haunted or whether he is experiencing delusions.

Production

Delirium was directed by Dennis Iliadis from a screenplay by Adam Alleca. The film was produced by Jason Blum and Leonardo DiCaprio, through Blumhouse Productions and Appian Way Productions.

Release

The film was distributed by Universal Pictures and was released digitally on May 22, 2018, with a DVD release on June 5, 2018.

Cast and characters

The credited cast includes Topher Grace as the lead, alongside Patricia Clarkson, Callan Mulvey, and Genesis Rodriguez. Promotional and database listings identify the film as an English-language horror-thriller.

Key facts

  • Directed by Dennis Iliadis and written by Adam Alleca.
  • Produced by Jason Blum for Blumhouse Productions and Leonardo DiCaprio for Appian Way Productions.
  • Released on video on demand on May 22, 2018, and on DVD on June 5, 2018.
  • Stars Topher Grace, Patricia Clarkson, Callan Mulvey, and Genesis Rodriguez.
  • Centers on a psychiatric patient who inherits a mansion and suspects it is haunted.

Frequently asked questions

What is Delirium (2018 film) about?
It is about a man who leaves a mental institution, inherits his parents’ mansion, and starts to believe the house is haunted.
Who directed Delirium?
Dennis Iliadis directed the film.
Who wrote Delirium?
The screenplay was written by Adam Alleca.
Who stars in Delirium?
Topher Grace leads the cast, with Patricia Clarkson, Callan Mulvey, and Genesis Rodriguez also featured.
When was Delirium released?
It was released on video on demand on May 22, 2018, and on DVD on June 5, 2018.

References

  1. Wikipedia — https://en.wikipedia.org/wiki/Delirium_(2018_film)
    Supports: Director, writer, cast, production companies, and release dates.
  2. IMDb — https://www.imdb.com/title/tt2069797/
    Supports: Premise and United States release date.
  3. Movies Anywhere — https://www.moviesanywhere.com/movie/delirium-2018
    Supports: Runtime, genre, release date, and language.
  4. Netflix — https://www.netflix.com/title/80082969
    Supports: Plot synopsis and cast listing.
  5. Rotten Tomatoes — https://www.rottentomatoes.com/m/delirium_2017
    Supports: Director, producer, screenwriter, distributor, genre, and release information.