Hell is empty - the demons walk among us. Fifteen years ago, a group of powerful figures, each cloaked in sin and influence, turned Duma City into a "hell island." Fifteen years later, these shadowy masterminds began dying one after another - each in a gruesome, horrifying manner. One murder after another, one layer of darkness after another - long-buried evils are gradually revealed, washed into the open by the blood of the powerful. Behind this web of power, money, and desire - how many hidden sins are waiting to be uncovered?