The Jitters (1989)

It's the feeling you'll never lose...Once you get 'em you just can't shake 'em.

In Chinatown, ruthless gangs go on nightly rampages of murder and theft. Merchants have no way to fight back - until they're dead. That's when they transform into kyonshees - zombies - and avenge their unjust deaths in a way that's sure to give you the Jitters.