文仔只是一个任性的少年，有一次服因事打架，自知闯祸，心虚下拒捕逃回家中，文仔妈妈是护士，她得知儿子犯了事，即严加指责，但当CID张SIR及警员人上门拉人的时候，她又由于爱子心切，代文仔向警察求情，但张SIR大公无私，决意抓文仔回警署，纠缠间文仔受了伤，被送往医院，文仔妈妈因此也对张 SIR心存不满。

Referred to as Hong Kong's answer to "Misery", innocent-looking Bo-Bo Fung is an overprotective mother/nurse who is bent on revenge at all costs after the death of her son at the hands of policeman Lau Ching-Wan. Veronica Yip stars as a gambling addict who enlists Lau to protect her from loan sharks, and eventually returns the favor in order for him to survive Nurse Lam's relentless assault.