What movie shocked Ching-Ying Lam by helping others open coffins?

Mr. Zombie is a magical zombie film released by Universal Asia Film and Television Distribution (Hong Kong) Co., Ltd., and it is also the pioneering work of zombie films in Hong Kong. Directed by Liu Guanwei, written by Ying Huang, Huang Bingyao and Situ Zhuohan, co-starred by Ching-Ying Lam, Xu Guanying, Siu-ho Chin, Li Saifeng, Wang Xiaofeng, Yuanhua and Lou Nanguang.

The story background of the film is set in the early years of the Republic of China. My late father, a rich squire, threatened to lure me to a land of geomantic omen. After being buried for 20 years, it has to be buried in the grave, so that future generations can benefit. Ren Fa invited Ching-Ying Lam to play Taoist Jiushu and his two disciples for burial. Unexpectedly, the body has become a zombie, thus launching a fierce battle.