Do Kyungsoo, a highly gifted criminal profiler, is recruited to aid in investigating a series of unsettling murders. Although his unique mind is an asset to the investigation, something about the serial killer he hunts for weighs heavily on him for more reasons than he cares to admit. As the nature of the murders he is forced to examine grow increasingly explicit in their motive, Kyungsoo begins to struggle more than ever before to maintain the tenuous hold he has over his fragile psyche. Fee