One word : masterpiece
The Korean drama Mouse gives us an insight into psychopathic killers. The dark theme of this drama, coupled with the fact that Lee Seung-gi is the male lead, caught our attention.
Lee Seung-gi in this drama was phenomenal. The way his true character was revealed and how he executed that change was a thing to watch. He delivered perfectly what was asked for the role. His tears, guilt, sadness, and regrets shown in the penultimate and finale episodes were magnificent. The way his emotions were expressed through the character was truly worthy of praise.