In a gritty Tokyo love hotel district, the discovery of a woman's body in a rundown apartment sparks a chilling investigation. Meanwhile, the wife of a romance novelist grapples with a mundane existence devoid of passion. Seeking to escape her joyless routine, she embraces her desires by becoming a nude model, performing explicit acts on camera. As she meets a mentor and delves deeper into the world of sex work, she struggles to maintain the illusion of being the devoted wife, concealing her double life from those around her.