Mouse (2021)

Episode Overview

Ba Reum is increasingly struggling with his violent impulses, feeling a growing urge to harm others. Alarmed by the possibility that Yo Han's influence could completely dominate him, he grapples with fear. Just as he’s battling these feelings, another murder occurs, mirroring the patterns of earlier cases. This raises troubling questions: if Yo Han isn't responsible for the series of killings, does that mean the brain fragment implanted in Ba Reum doesn't belong to a psychopath after all?