A Good Marriage is a 2014 American psychological thriller film directed by Peter Askin and written by Stephen King, based on his novella of the same name, from the 2010 collection Full Dark, No Stars.

Upon looking further, she finds a secret compartment behind the garage's baseboard and inside is a small box containing ID cards of Marjorie Duvall, a victim of a serial killer known as "Beadie".

Horrified, Darcy looks up Beadie online and cross-checks Bob's business records with the locations of the murders, finding that he was close to most of the crimes.

He calmly explains his insanity to Darcy, recounting how he and a sadistic friend named Brian Delahanty, or "BD" (from which "Beadie" was derived), planned a school shooting as teenagers.

The following morning, Darcy feigns an agreement to forget what she has discovered, on the condition that he does not kill again, and that he bury Duvall's ID cards in the woods.

[7] Frank Scheck of The Hollywood Reporter called it "a decidedly minor" adaptation that "fails to fulfill the potential of its provocative premise".

[9] Gary Goldstein of the Los Angeles Times called it "a wry, old-fashioned game of cat and mouse" with good acting.

[10] Pete Vonder Haar of The Village Voice wrote that it is a serviceable, nondescript thriller that was a surprising choice to adapt to film.

"[13] Chuck Bowen of Slant Magazine rated it 2/4 stars and wrote, "The film is watchable in a plodding one-thing-after-another sort of way, but it could have used far more of King's mordant humor".

[14] Patrick Cooper of Bloody Disgusting rated it 1/5 stars and called it the worst King adaptation yet due to its lack of thrills.