The Jitters(1989)

In Chinatown, merciless gang goes on nightly rampages of theft and destruction. Merchant Frank Lee has no way of fighting back - until he's undead, murdered by the gangsters...but he returns to life transformed into a "Kyonshi" - Chinese version of a vampire - and ready to avenge his unjust death in a way that's sure going to give you the Jitters.