[DeepL Translation - needs review] Three murder cases with no clue as to how to solve them.
The common denominator was the method of murder and the fact that all the victims had caused the death of others in the past.
As the investigation progresses, it is discovered that the bereaved families of the victims from the past cases, who hate the victims, are staying at the Hotel Cortesia Tokyo.
Kosuke Nitta, now a police inspector, begins his undercover investigation again, this time with mixed ...
