When George lands a job teaching art history at a college, the family moves into a large farmhouse in upstate New York.

On a class trip, Justine overhears a conversation between George and his dissertation advisor, who asks how he was hired without a letter of recommendation.

In George's classroom, a mystical painting of death and a Christian cross from a book that Floyd gave him is suddenly projected on a screen.

In September 2019, it was announced Amanda Seyfried had joined the cast, with Shari Springer Berman and Robert Pulcini directing from a screenplay they wrote.

[4] In October 2019, James Norton, Natalia Dyer, Rhea Seehorn, Alex Neustaedter and F. Murray Abraham joined the cast, and principal photography commenced that month in Hudson Valley, New York.

The website's critics consensus reads, "The terrors in Things Heard & Seen are overwhelmed by a banal and uninspired adaptation that fails to connect to its haunting source material.

[7] KKFI's Russ Simmons gave the film a mixed review, stating: "The filmmakers create an eerie atmosphere that carries the movie even as it goes a bit off the rails in the finale.

"[8] Albert Nowicki of His Name is Death believed that "the film is the most interesting when it tells the story of a doomed relationship, putting the toxic marriage under a microscope".

He also noted that Things Heard & Seen was not as captivating as a horror film, as it was too similar to Robert Zemeckis' What Lies Beneath (2000).

[9] Noel Murray wrote in The Los Angeles Times, "while the cast is great, the milieu is vivid, the images are polished and the atmosphere is effectively moody, Things Heard & Seen fails to connect on a visceral level.

"[10] Johnny Oleksinski's review in The New York Post was mildly positive, stating "Things Heard & Seen is an adequate haunted-house film, to be sure," and "while not in the same league as A Quiet Place and Charlie Kaufman's oddball Netflix thriller, it has a spooky atmosphere and an appealingly slow boil.