Min-ha, a widowed doctor, is on her way to Italy to meet her stepdaughter when a familiar man approaches her on the plane. The man is film director Min-gu, on his way to the Turin Film Festival in Italy. Pretending that she doesn’t recognize him, she brushes him off and quickly heads off for Lake Como. But when they run into each other again on the street in Torino, she throws caution to the wind and decides to take an uncharacteristically spontaneous leap.
Turns out, two decades ago, Min-ha and Min-gu were lovers. This chance Italian encounter sets off a romantic road-trip, filled with reminiscences of love and lives past. However, though Min-ha is widowed, Min-gu is now married with a child. As truths and lies unravel along the road, Min-ha and Min-gu must decide whether this fateful encounter will be just another chapter in their soon-to-be-past lives or if it will mean long-lasting love.