After a ninja is killed by the police, his demonic spirit invades the body of an unsuspecting aerobics instructor. Changed by her possession, she becomes a systematic killer who can only be stopped by another, equally skilled martial artist.
After a ninja is killed by the police, his demonic spirit invades the body of an unsuspecting aerobics instructor. Changed by her possession, she becomes a systematic killer who can only be stopped by another, equally skilled martial artist.
