The Golden Couple by Greer Hendricks.

The next electrifying novel from the #1 New York Times bestselling author duo behind The Wife Between Us. "Propulsive and thrilling....A page-turner that will keep you guessing until the very end." --Taylor Jenkins Reid, author of Malibu Rising Wealthy Washington suburbanites Marissa and Matthew Bishop seem to have it all—until Marissa is unfaithful. Beneath their veneer of perfection is a relationship riven by work and a lack of intimacy. She wants to repair things for the sake of their eight-year-old son and because she loves her husband. Enter Avery Chambers.