Misbehavior

“Secrets come undone...”

Kim Ha-neul (Park Hyo-joo) is a temporary teacher at a boys' high school, hoping the post turns into a permanent one. Then she sees Hae-young (Yoo In-young) in a passionate embrace with a student, and the girl is humiliated at being caught. Kim Tae-yong keeps Ha-neul in the frame as she carries what she saw through the school, Hae-young's mortified face still in her mind.