Sprited Killer

In the forests of Thailand, a demented shaman named Dr. Duang has been feeding gullible villagers a so-called magic potion of youth. There is an unfortunate side effect, however, it kills people. When a group of fellow villagers learn about the doctor's malicious chemistry, they set out to bring him to justice. Some fighting commences and Duang is sliced up with a sword and dumped into a river. An indeterminate amount of time later a mysterious figure emerges in the forest. Hes silent and deadly and wears a jacket. He is the Spirited Killer a lunatic possessing incredible fighting powers who dimantles anyone that crosses his path. One of the victums is Tony Jaa. Theirs is just one of many jungle fight sequences that ultimately culminate in a showdown with some motivated villagers a group of Japanese academics on a field trip and a special return guest.