Felix, a well known detective, catches himself taking on a new case which seems tricky to most of his co-workers. This case is about a mass murder that took place right in front of the city's police station. Somehow, the criminals succeeded in leaving before the police officers were able to even see them. Yet something that made everyone so worried about solving this case is the murderers not showing on neither the cameras nor the passersby's memory. One day, after collecting information on the case, the young blond man gets going towards the abandoned poverty he thought the criminals were hiding in. As he's getting deeper inside the old abandoned building, the murderers show up one by one. These people are different from any other criminals Felix has ever come in contact with since they all seem to welcome Felix in their hideout. It feels like they already know him by the way they all talk and act around him. Why aren't they just killing him? What are these people really up to?