In Chuncheon, Gangwon Province, high school teacher Jeong-ha’s peaceful daily life is interrupted by unexpected visitors. Her son Jin-woo, who is studying abroad in Canada, suddenly shows up at her school with his girlfriend Jenny—without any prior notice. Soon after, Jenny’s parents, who are supposed to be in Canada, also make a surprise arrival in Chuncheon.

After a commotion over lodging arrangements, the two families—who barely know each other—end up staying together in Jeong-ha’s home. As this awkward and uneasy cohabitation unfolds, hidden secrets gradually come to light, and the atmosphere grows increasingly delicate…