Plot: An escaped convict (Gordon Liu) looking to prove his innocence poses as one of several hopping corpses being delivered to their relatives by a pair of corpse herders.
Unfortunately, Kar-leung isn't content to simply make a zombie movie and the supernatural elements that dominate the first half give way to more traditional kung fu plotting. Unlike subsequent vampire films that upped the ante, Kar-leung's vampire's are simply walking corpses and rather harmless. There's no bloodsucking or gore of any kind. But they can still get a little unruly without the proper spells and its up to Fan Zheng-yuan (Wong Yu) and his master (Lau Kar-wing) to keep them in order as they "herd" them to the homes of their families for burial. But for all of this duo's skill, one bald corpse remains especially troublesome. The herders don't know it yet, but he's no corpse at all. He's Zhang Jie (Gordon Liu), an escaped convict who is out to prove that he was framed for a crime. But first, he has to evade capture and get to the man responsible (Lee Hoi-sang) and posing as a walking corpse is his only option. This is basically the plot, with the rest of the film resting on situational comedy and sporadic kung fu.
The Shadow Boxing is essential viewing for anyone interested in fully exploring the wonderful world of Chinese vampires, or as their also known, zombies and walking corpses.