In these words

Asano Katsuya is a US trained psychiatrist who has been recruited by the Tokyo Police Department to provide a profile through the victims' data. Based on Asano's profile and recommendation, an elaborate plan is put into place to lure the serial killer out - a plan that bore successful results! Now, after three years and twelve victims, Shinohara Keiji is finally in police custody. Shinohara has promised a thorough confession, however, on the absolute terms that Asano has to be the one to receive it. Besides the curious request by the killer whom Asano was only familiar with on paper, disturbing nightmares begin to plague him as soon as he's given the case...