A Korean psychological drama adapted from Juan Mayorga's Spanish stage work, this show follows a literature professor whose mentorship of an unusually gifted engineering student curdles into obsession, blurring the lines between teacher, student, and story. The Progressive label is a modest one, driven mainly by the production's cross-cultural casting choice: European characters from the source material are fully transposed into a Korean setting with Korean actors, a signal that registers on the scale. No political agenda, no identity-politics storylines. The marriage at the center of the story is fractured and childless, producing a quietly unsentimental picture of adult life. The drama runs on literary obsession and psychological unease rather than ideology.