One hypothesis after another, the inspector, guided by lawyer Gojin, examines each profile, each alibi, each scenario, down to the most fantastic. The reader gets caught up in the game and, together with Inspector Lee, tries to solve this mysterious crime.
Two dead in an apartment on the first floor of a quiet building in Seoul. The woman who lived there – a stab wound for her – and a neighbour – a punch wound for him – a hateful guy who had been hanging around her lately.
But since the main suspect lies next to the victim, the culprit must be sought elsewhere. The janitor seems to have the profile, so Detective Lee Yuhyeon completes his investigation and sends him to trial. But nothing happens as planned. The old man’s innocence is obvious, the trial is a fiasco.
It is then that in his phone, Lee Yuhyeon hears a familiar and mocking laugh, that of lawyer Gojin, the lawyer of the shadows. Yes, it will take start all over, start from the beginning. Because everyone in
this building might have some reason to have committed this double murder.