Episode 13 (S01E13)

A wedding is on the horizon, but a funeral looms as well. Jang-yeol finds himself unexpectedly empathetic towards Ye-bun's pain. Meanwhile, Seon-woo's lack of presence raises eyebrows. Captain Jong-muk and his team receive orders to steer clear of the serial killer investigation, focusing instead on "safeguarding public welfare." As each suspect is ruled out, Jang-yeol revisits his initial findings, questioning everything he thought he knew. Just then, Ye-bun storms into his home with a chilling theory that ties all the new clues together in a shocking way.