It stars David Dastmalchian, Laura Gordon, Ian Bliss, Fayssal Bazzi, Ingrid Torelli, Rhys Auteri, Georgina Haig, and Josh Quong Tart.

[6][7] The film's prologue is framed as a documentary investigating an unexplained event that occurred on the night of Halloween 1977, during the live broadcast of a sixth-season episode of the successful variety late-night talk show Night Owls with Jack Delroy, which competes for ratings with The Tonight Show Starring Johnny Carson.

Through his celebrity connections, Night Owls host Jack Delroy, who is based in New York City, makes regular visits to "The Grove," an elite California camp for wealthy and powerful men.

In the next segment, June introduces Lilly, the sole survivor of a mass suicide by a Satanic church and its leader Szandor D'Abo that worshipped Abraxas.

Carmichael challenges June by subjecting Jack's sidekick Gus McConnell to a hypnotism demonstration, which causes nearly everyone in the studio to see worms pouring out of him.

When the production team rewinds the footage, it proves that the demonstration was merely a joint hallucination experienced by nearly everyone in the studio; however, the supernatural phenomena that occurred during June's conjuring is unaltered in the recorded playback.

During a ceremony at The Grove, he made a pact with the Devil, sacrificing his wife's soul in exchange for fame and the success of Night Owls.

Using the ritual Athame dagger from Lilly's former Satanic cult, he then stabs her to death; and the scene suddenly shifts to the now-empty studio.

Production on Late Night with the Devil was announced on 13 February 2022, with the Emirati studio Image Nation and the American genre label Spooky Pictures attached.

[6][14][15] That same month, horror author Stephen King was provided with an advance screener of the film and tweeted, "It's absolutely brilliant.

The website's consensus reads: "Delightfully dark, Late Night with the Devil proves possession horror isn't played out – and serves as an outstanding showcase for David Dastmalchian.

"[26] Trace Sauveur of The Austin Chronicle also praised Dastmalchian's performance and called the film "totally gimmicky, but the sincere commitment to the conceit is what really makes this work."

Sauveur adds that, despite finding the film's conclusion lacking, "Late Night with the Devil is able to mine plenty of effective and fun ideas out of its premise, and it works as a potent examination of the price of success.

[30] For Entertainment Weekly, Allaire Nuss wrote that Late Night with the Devil, which she described as being presented in a mockumentary and analog horror format, was "the first great scary movie of 2024" and that she "adored every second of it".