Forever Knight - Season 1 Episode 3 For I Have Sinned

Another serial killer, this time preying on young women who all attend the same church. In order to catch him, Nick must try to overcome his fear and loathing of the Church and its symbols. Meanwhile, flashbacks to 15th Century France show Nick's encounter with a young peasant girl doomed to become a martyr when her claims that God spoke to her result in the Church branding her as a heretic and condemning her to burn at the stake. Nick offers her his version of immortality, but she refuses in favor of her own belief in life after death.