The Beast Hand (DVD)

Osamu is forced into a lifestyle of crime. Unfortunately, when he crosses the wrong gangsters, they punish him by Sword, amputating his left hand in the process. Osamu's ex-girlfriend Koyuki takes him to a Doctor deep in the dark bowels of the city to attempt a transplant. But the new hand has a mind of its own, much to the dismay of the gangsters responsible - as Osamu pursues his revenge.