Mitsuko leaves behind her familiar routine in Tokyo and settles into a new home with her husband’s family in a quieter setting. Determined to fit in, she offers a small favor to her father-in-law, expecting nothing more than a routine task. The gesture, however, quickly draws her into a private encounter that awakens unexpected feelings. As the afternoon unfolds, she senses her place in the household beginning to shift in ways she had never imagined.