In the year 20XX.

Despite the fact that the citizens are monitored by IC chips, making the identification and arrest of criminals easier, gruesome murder cases targeting children by an unidentified serial killer are occurring all over the country.

Clad in a black cloak and a clown mask, a deranged serial killer known as the 'Murderous Clown' who poses 'questions' to his victims — the battle between him and the police officer, Yuuto Asakura, begins!