Story of Zom-B

• Matthew Ho as Yu Yeung-kwong, a carefree man who becomes a brain-eating zombie with the ability to absorb memories
• Kaman Kong as Mok Siu-chun, a hot-tempered woman who later develops feelings for Yeung-kwong.
• Arnold Kwok as Koo Tak-ming, a forensic intern who studies Yeung-kwong's condition and helps him control his zombie instincts.
• Milkson Fong as Warren, an amateur Taoist priest who assists Tak-ming with Yeung-kwong's zombie crisis.
• Ashley Chu as Yu San-hei, Yeung-kwong's lawyer elder sister who tries to protect the family.
• Iris Lam as Yu Man-ha, Yeung-kwong's younger sister who helps at the family's hot pot restaurant.
• Suet Nei as Pak Ma San-kan, Yeung-kwong's grandmother who runs the family hot pot restaurant.
• Ram Chiang as Yu Gwo / Yu Cheung-kim, the Yu family's mysterious grand-uncle who knows their hidden past.
• Stephanie Che as Man Chau (Sarah), Siu-chun's mother and a mahjong parlour owner.
• Mark Ma as Shentu Ching-fai, a restaurant worker secretly linked to the zombie research.
• Hera Chan as Leung Sin-tung (Bella), Yeung-kwong's childhood crush.
• Jackson Lai as Scott, a scientist whose research to cure his son triggers the zombie outbreak.

The series follows Yu Yeung-kwong (Matthew Ho), the heir to a hotpot restaurant, who becomes infected with a zombie virus following an accident. To sustain himself, he must consume human brains, temporarily acquiring the memories, skills, and personality traits of the deceased. His path crosses with Mok Siu-chun (Kaman Kong), the heiress to a mahjong parlor, who inadvertently pushes him off a bridge and later becomes one of the few people aware of his condition. With assistance from forensic intern Koo Tak-ming (Arnold Kwok) and Taoist Warren (Milkson Fong), Yeung-kwong deals with family tensions at the restaurant, romantic entanglements, an impostor named Yu Gwo (Ram Chiang) posing as a relative, and dangers posed by a secretive Japanese organization linked to new chef Shentu Ching-fai (Mark Ma).

As events unfold, the accumulation of absorbed memories increasingly affects Yeung-kwong's mental health, leading to memory loss, hallucinations, and episodes of diminished self-control. Efforts to find a cure coincide with escalating threats, including attacks on Siu-chun and disappearances among the homeless population, culminating in a full zombie outbreak across Hong Kong. Following a major clash with zombies in an abandoned factory, Yeung-kwong leaves in order to protect his family from further harm. Hong Kong Island is subsequently quarantined as a restricted area, with surviving residents preparing to defend themselves against the spreading infection.

Yeung-kwong later returns, and during a confrontation it is revealed that his saliva functions as a vaccine capable of reversing the zombie transformation and restoring infected individuals to human form. He uses it to cure others, leading to the containment of the outbreak. However, Yeung-kwong and other infected individuals suffer amnesia as a side effect, causing him to forget his relationship with Siu-chun. Despite this, the two eventually reunite and begin their relationship anew.^[2]

The series was produced by Ng Koon-yu, with script supervision by Kwan Chung-ling, Sin Chui-ching, and Lee Ho, and directed by a team of directors.^[3][4]

During the filming of Story of Zom-B in 2020, actors Ashley Chu and the married actor Jackson Lai were involved in a widely reported personal scandal, which drew media attention and public scrutiny. Both later issued apologies, and Lai publicly acknowledged a brief relationship with Chu.^[12][13] The controversy led TVB to temporarily shelve the series before its eventual streaming release in 2021 and free-to-air broadcast in 2022.^[14][15]