At twenty-three, Annabel thought she finally had her life completely under her control. But a single, frantic phone call from her mother shatters her independence: “I got married, the finances are a mess, and I need you back home.” Forced to pack up her life and move back into her childhood home, Annabel expects awkward family dinners and the sting of swallowed pride. What she doesn't expect is the towering, devastatingly handsome shadow waiting for her in the living room. Anthony. He was her ultimate high school crush—the quiet, lethal track star who never gave her the time of day. Now, he’s not just a memory; he’s her new stepbrother’s best friend, constantly in her space, and more dominant than ever. But Anthony is harboring a dark, suffocating secret. When a confrontation forces the truth into the open, Annabel is horrified to learn that Anthony has spent the last five years rejecting every woman who crossed his path. He saved himself entirely for her. For Anthony, it’s proof of his ultimate devotion. For Annabel, it feels like an obsessive, terrifying trap. She doesn't want the guilt of his purity, and she definitely doesn't want a man who has turned her into his holy grail. But as the tension in the house reaches a boiling point, Annabel realizes that drawing the line is easy—but keeping Anthony from crossing it is going to be impossible.