Dinner with friends takes a turn when Yeonji's coldhearted college ex shows up. After all those years, Ava wants to try again and to date like they used to. Should Yeonji give it a second chance, when all Ava did was leave her broken and humiliated? And why is Ava reaching out now, just as their old college friend, Mojoo, has returned from abroad? The timing's peculiar, but something's different about Ava. Will the two rekindle a broken love? Or will dark secrets of the past stand in their way?