Instead of a straightforward pursuit of justice, Soo-hyun implements a "catch and release" strategy. After tracking down Kyung-chul and brutally beating him, Soo-hyun implants a GPS tracking chip in the killer's body and lets him go. This cycle of tracking, torturing, and releasing Kyung-chul creates a nightmarish game that slowly strips Soo-hyun of his own humanity as he becomes as monstrous as the man he hunts.

The psychological impact of trauma and the desire for revenge are critical elements of the narrative. Both main characters undergo significant psychological turmoil, with their actions and decisions being influenced by their experiences. This aspect invites viewers to consider the psychological effects of witnessing or experiencing violence and the complex emotions that follow.