romance and conspiracies plans between Darkseid and Bruce

You have to take responsibility, the child is yours! ——Caring and considerate alpha doctor × Soft and resilient omega piano teacher

Each case is related to something special. Every trace breaks off somewhere without giving the detectives any logical solution. Everyone is different and understands the concept of serial killing differently. Some only catch evidence, others are intuitive and accurate. There is one case and there are countless detectives. What will each of them have to go through to get to the very end of the serial murder path? Will any of them find a solution?