Eighteen-year-old Ha-min suddenly begins to see the number "365" every time he eats his mother's homemade meal—and the number drops with each bite. Believing it to be a countdown to his mother's death, he distances himself from her and her cooking. Years later, still haunted by the number, Ha-min lives cautiously, preparing for the worst. Just as he begins to find peace with his girlfriend Ryeo-eun, an unexpected truth turns his world upside down.

Kuk-hee, a by-the-book district office civil servant, has lived a flawless, tightly scheduled life. With a promotion imminent and her daughter's future secured, everything is going according to plan. Until it all unravels—her promotion is taken, her daughter disappears, and an unexpected emptiness sets in. Searching for balance again, Kuk-hee ends up in the last place she ever expected: a flamenco dance studio.