Married for six years, Gu Qinghe has always lived in the perfect marriage built by her husband, Lu Chenzhou. Until her best friend visits, accidentally discovering hidden surveillance in the whole-house smart system, after which the best friend mysteriously disappears and is falsely accused. Gu Qinghe follows the clues and breaks into the forbidden blue study, only to learn that she is actually subject A-001 in her husband's archives. Gentle and considerate is fake, monitoring and control are real; property, custody, and her life have all been quietly set up in traps by him. She hides recordings and gathers evidence, joining hands with the police to tear open this cage named after love, and ultimately dismantles the scheme with her own hands, taking back sovereignty over her life.