For two years, Dr. So Lee-yeon has concealed a devastating secret within Spruce Hospital's walls: a comatose patient trapped in a vegetative state. Her desperate prayer each night remains unchanged—that he never awakens. But fate intervenes when the impossible occurs, and the man finally opens his eyes, his mind wiped clean. Desperate to contain his dangerous instincts and the murderous rage she fears lurks beneath the surface of his shattered memory, she makes a split-second decision born from survival. She becomes Kwon Chae-woo, his devoted wife, weaving an elaborate deception to protect herself from the very man who had once tried to bury her alive. As they navigate the treacherous space between this carefully constructed lie and the dark truths of their past, obsession takes root. What begins as a dangerous game of manipulation spirals into something neither of them anticipated, where possession blurs with devotion, betrayal intertwines with redemption, and love emerges from the darkest corners of revenge and trauma.