Mine S01E01 opens with a nun entering a police station, breathless, reporting a murder. The scene then shifts to the “60 days earlier” narrative. A new maid and tutor are hired and the characters living in the Hyowon Mansion are introduced.
Jung Seo-hyun is playing a dangerous game and the narrator says that she is controlling everyone’s lives without anyone knowing it. She tells head maid Joo that she will fire Kim Yu-Yeon the next day and to keep it a secret.