While police captain Liu Kun is suspended and under investigation for allegedly murdering his wife, he sorts through her belongings and unexpectedly discovers that she had secretly been using another phone. A young couple is found brutally murdered in their apartment at Rose Mansion, and an unidentified body missing its head and internal organs is discovered in the refrigerator. The crime scene is a perfect sealed room, completely cut off from the outside world. With a bizarre murder and multiple victims on their hands, the Ancient City Public Security Bureau brings Liu Kun back to investigate. Feng Kexin, an artist with a degree in criminal psychology, joins the major crimes unit at the Ancient City Public Security Bureau, where Liu Kun works. As the investigation deepens, a deranged male artist, a neatly dressed bank manager, a mild-mannered church pastor, a handsome and cheerful fitness trainer, a butcher recently released from prison, a gloomy-eyed female university student, and a beautiful bar owner all appear on the police's radar...
Liu Kun discovers that his wife's death is unexpectedly linked to the case in countless ways.