If only I had known that my father’s next investigation would cause me to end up in a mental hospital... I would not have agreed to participate in my life. If only I could imagine that I would lose absolutely everything that was important to me... I tried by any means to dissuade my dad from taking on this matter. If only someone had warned me that the series of murders of students would be closely intertwined with my own life... I would have disowned it and forgotten it like a bad dream. But what's done is done. There is blood on my hands, and I myself am vegetating in the cold walls. And the killer is still roaming free somewhere. To get out of here and catch him, I'll have to make a deal with the devil himself. Am I scared now? No. I have nothing more to lose...