When the daughter of a couple with an idyllic marriage goes missing, the strange mastermind of the kidnapping shows up and issues them various, strenuous tasks they must perform in order to save their child.

The nightmare begins when Walter, a mild-mannered dogcatcher, begins reading a tattered, used book called The Number 23. Obsessed by the countless similarities between the degenerate main character and himself, Walter plunges headlong into the same dark, seductive world. When the book's main character commits an unspeakable act, Walter is terrified that he's destined to follow the same twisted path.

After fourteen years of marriage, Tom and Janet still can't keep their hands off each other. When they discover their friends are resentful of their constant public displays of affection, the couple starts to question the loyalty of everyone around them. Then, a visit from a mysterious stranger thrusts them into an existential crisis, leading to a dead body, a lot of questions, and a very tense couples' vacation in this dark romantic comedy.

When a young married couple buys their dream house in the Napa Valley, they think they have found the perfect home to take their next steps as a family. But when the strangely attached seller continues to infiltrate their lives, they begin to suspect that he has hidden motivations beyond a quick sale.