Class of Lies (2019)

Ki Moo-Hyeok is a high-profile lawyer who only cares about winning and money. But when a murder case at a high school ruins his reputation, he decides to go undercover as a temporary teacher to rebuild his image. While digging into the students’ hidden secrets, he clashes with Ha So-Hyun, a passionate PE teacher who truly cares about her students. Together, they uncover dangerous truths the students are desperate to keep buried.