angela happy at evil corp. tyrell MIA and joanna has a new bf? wtf? dom leads fbi investigation into five/nine. elliot demands answers from mr. robot.

Jung Min is a student who lives with his deaf mother. When he transfers to a new school, violence begins. Even though he asks for help from the school administrators and the police, there is no one to save him from this nightmare. Therefore, Do Ki disguises himself as a teacher to sneak into the school. Meanwhile, Ha Na receives an envelope anonymously and discovers a case.