The film follows a middle-aged woman struggling to take care of her autistic son for 20 years and discovered that her husband is having an extramarital affair.

[2] The Movie follows Mrs. Wong (Teresa Mo), a middle-aged housewife living in a Hong Kong public housing estate, as she cares for her autistic and mentally handicapped son, Kwong (Ling Man-lung), whose self-harming outbursts strain her marriage to Mr. Wong (Ray Lui Leung-wai), a driving instructor.

Mr. Wong grows distant and begins an affair with a manipulative younger woman, Daisy (Bonnie Xian Seli).

After discovering the infidelity, Mrs. Wong initially hides her pain to maintain stability for Kwong, but her husband eventually leaves the family to live with his mistress.

The film concludes with Mrs. Wong reflecting on her fractured family and the emotional toll of caregiving, while finding fleeting solace in her bond with Kwong.