Forever Knight.S1E08.Cherry Blossoms

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.
S1E08 - Cherry Blossoms
Caught in an ambush by Chinese mobsters, Nick discovers that an old man (James Hong) protecting a wounded mobster may be related to an attempt he made to cure his vampirism at an acupuncturist in 1916 Chinatown.

Written by Roy Sallows
Directed by Brad Turner