Chief Detective Stephen Kiss and his team must find a killer who has crept into the hearts of the public. The city's worst criminals are being burned alive. It does not take long before the press hails the vigilante killer as a hero. Stephen fears copy-cat killers eager to share in the vigilante's fame will soon follow suit. While fighting changes in their department, the team must take extra measures not to be side-tracked and keep their focus. The case leaves Stephen and the team amid a moral conundrum as they seek a killer who is doing humanity a favor. As morale in the office dips to an all-time low, Stephen knows he must find the answers to a friend's darkest secrets. When the killer announces a promise to ignite the ultimate Flame of Hell and kill 'even those who consider themselves innocent', the team knows they have one chance to prevent a mass murder… The worst the city has ever seen.