After escaping from an insane asylum, a medical student assumes the identity of a mysterious dead man, who appears to be his doppelganger, and gets lured to a sinister island ruled by a mad scientist and his malformed men.
Terry Sugury is hired to recover one of two tapes containing a formula for making heroin for a price of 200 dollars a pound. But he gets double crossed. So he wants the tape back.
Onimasa is the egocentric boss of a small yakuza clan on Shikoku Island, whose criminal duties conflict with his self-image as a chivalrous samurai. His struggles with his boss, the Shikoku Godfather, and the tumultuous life of his adopted daughter, Matsue, form the backdrop of this epic tale of justice, obedience, and bloody vengeance.
