On a quiet weekday afternoon, a husband gently greets his wife returning from shopping and suggests enjoying some drinks together while it's still light out. As she gets lightly drunk, he invites her to the bedroom, and she happily agrees—on one condition: only until evening, before the kids come home. For this 30-year-old housewife, Jun, whose relationship with her husband has grown distant due to their busy lives, this moment becomes an emotional release. Loneliness, pent-up desire, and stress explode all at once. In this fleeting encounter with a man who isn't her husband, she reveals her deepest, unfiltered truths. Experience the intense, emotional affair of Jun—a rich, passionate love story of a married woman letting go.