IMDB information:

Series information
https://www.imdb.com/title/tt5583512/
Title: Cardinal (2017-)
Genres: Crime | Drama | Mystery | Thriller
Description: Cardinal struggles to right past wrongs that could derail his investigation and end his career, as the case grows more violent and twisted, and the clock ticks down on the killer's next victim.
Director: N/A
Writer: N/A
Actors: Billy Campbell, Karine Vanasse, Glen Gould, Eric Hicks
Rating: 7.7
Votes: 3988
Rated: TV-MA

Episode information
https://www.imdb.com/title/tt6625080/
Season: 3
Episode: 1
Title: Sam (2019)
Description: In the aftermath of Catherine's suicide, Detective John Cardinal outwardly accepts the evidence that she took her own life, but when he starts to receive taunting greeting cards blaming him for her death, he begins to question the suicide.
Director: Daniel Grou
Writer: Patrick Tarr
Actors: Billy Campbell, Kathryn Alexandre, Aaron Ashmore, Alanna Bale
Rating: 8.1
Votes: 19


Youtube: http://youtube.com/watch?v=yOeuhYK44wg