佘偉豪和黃俊修是一對好朋友，自一年級相識開始，他們幾乎形影不離。香港出生的偉豪來自單親家庭，母親是內地人，同住不足一百尺的「劏房」。每當母親要返回內地「續証」，偉豪就會交托給俊修的家庭照顧。然而，佘偉豪一次上電視的經歷，卻改變了他的故事……

J and Jacky have been best friends and inseparable since they met in the first grade. Born in Hong Kong, J was raised single-handedly by his mother, who was a mainland Chinese. Together they shared a subdivided unit of no more than three meter wide. Every time when J’s mother had to go back to the mainland for “permit renewal”, she left him with Jacky’s family. However, J’s life changed after he went on television on day…