Tse Sing (played by Tse Yin) is obsessed with movie star Ka Ling, mistakenly believing that the manager Chow Yan-tat's mistress, Cheung Wai-Ling (played by Ka Ling), is his idol. To hide his extramarital affair, Chow Yan-tat forces the two to pretend to be a married couple, triggering a series of comedic misunderstandings. After Wai-Ling attempts suicide under unbearable pressure but survives, she wins Tse Sing's heart with her genuine feelings, and they finally become a couple.