The Couple Next Door, written by Shari Lapena, is a gripping psychological thriller that explores the lengths parents will go to protect their child. The story revolves around Anne and Marco, a couple who leave their baby alone in their house while attending a dinner party next door. When they return, their baby is missing, and they become the prime suspects. As secrets and betrayals are revealed, the truth becomes increasingly elusive. The Couple Next Door is a suspenseful and addictive novel that will keep you guessing until the shocking conclusion.