Forever Knight.S2E06.Capital Offense

Forever Knight is a 1992 - 1996 Canadian television series about Nick Knight (Geraint Wyn Davies), an 800-year-old vampire working as a police detective in modern-day Toronto, Ontario. Wracked with guilt for centuries of killing others, he seeks redemption by working as a homicide detective on the night shift while struggling to find a way to become human again.
S2E06 - Capital Offense
Nick and Schanke catch a killer on the run from Texas, but Nick is torn over extraditing her when he believes she is innocent. While investigating her innocence, Nick is reminded of a time when a young French nun sheltered him from pursuers in a convent basement.

Aka. Zum Tode verurteilt (Sentenced to Death)

Guest Starring:
Lisa Langlois (Laura/Marise)

Additional Cast
Robert King (Danny Carruthers)
Lenore Zann (Amber)
Rebecca Bell (Sgt. Lillian)
Lise Lebel (Mother Superior)
Victor Erdos (Car Rental Clerk)

Written by Michael Sadowski
Directed by Timothy Bond