In their ordinary, peaceful daily lives, the couple's contrasting personalities unexpectedly deepen their relationship. The husband is meticulous and attentive, while the wife is completely the opposite. On weekends, the three of them—husband, wife, and child—often visit the park together, embodying the picture-perfect happy family. Yet, as the years pass and she grows weary from household chores and child-rearing, something deep inside her begins to stir. Gradually, the wife starts questioning her current life. These feelings grow stronger each day, transforming into an uncontrollable urge.