A champion fencer accidentally kills an opponent in a match. Disgraced, he is blackballed from the fencing community, until a mysterious stranger saves his life one night from a gang of muggers. He soon finds himself caught up in the world of underground illegal swordfights, where combatants fight to the death.

A private eye helps an amnesiac CIA agent elude mobsters who don't want him to regain his memory of their drug operation.