“Mouse” is about an innocent and upright police officer named Jung Ba Reum (Lee Seung Gi) and a hardened detective named Go Moo Chi (Lee Hee Joon) who believes in nothing but revenge against the serial killer who murdered his parents. The two team up to track down an evil psychopathic predator. Despite having different personalities, Jung Ba Reum and Go Moo Chi have successfully worked together to solve various cases. Below are three moments in which their chemistry shined: Spoilers 1. Investigating cases together Jung Ba Reum and Go Moo Chi have used their unrivaled investigative instincts to solve various crime cases. After his brain surgery, Jung Ba Reum in particular showcased a completely different investigative ability as if a psychopath had actually entered his brain. Jung Ba Reum caught all the evidence Go Moo Chi had missed, making him very satisfied with Jung Ba Reum’s development. The way the two gathered clues together like they were completing a jigsaw puzzle and gave viewers thrilling satisfaction.