Forever Knight - Season 2 Episode 14 The Fix 13TH CENTURY VAMPIRE. 20TH CENTURY COP.
Overview: Natalie's research leads her to believe she might be able to cure Nick, if he's willing to take the risk. While taking the wonder drug, Nick and Schanke unofficially investigate the suicide of another cop. Is Nick just having incredible hunches or is the drug not quite what it seems?