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.

Former prostitute Molly Stewart works as a police photographer. When an old friend, a groupie in pursuit of the lead singer of a rock band, is found murdered with a guitar string, she goes undercover as Angel to find the killer.