Alfred Cahill is stabbed by a prostitute, dies and awakes Immortal. Already unstable, he is made insane by the shock of becoming Immortal, Cahill believes he has become God's avenging angel and starts killing prostitutes and other 'sinners' around them, including a client and a pimp. One of Tessa's friend Elaine Trent is the next target. After Cahill threatens Tessa, MacLeod is forced to fight him.
