A round table of diverse characters, each obsessed with one of the five senses, participates in a very, very high-stakes game of social deduction. Who gets eliminated when the lights go out?

Jung-ah and her husband Hyeon-soo suffer sleepless nights from the passionate couple upstairs, Su-kyeong and Mr. Kim. Hoping to ease tensions, Jung-ah invites them to dinner — but polite chatter soon unravels into raw, boundary-breaking honesty, exposing hidden cracks in relationships with biting wit and emotional precision.