Merciless swordsman Ryunosuke Tsukue is a government assassin in feudal Japan who has no remorse and no moral code. When he is scheduled to participate in a friendly fencing contest, he ends up killing his competitor. Next, after a fight with his own mistress, he murders her and deserts their infant son. Later, while spending the night in a haunted geisha house, he sees the specters of all of his victims and spirals into madness, leaving a bloodbath in his wake.
