Recently been watching (and getting hooked) on the TV show Canadian whydunnit MOTIVE.
Nifty premise - at the beginning of each episode we see a person identified as a killer then another person identified as a victim we then start at the discovery of the victim's body and the team of detective regulars try to find the murderer with "why they did it" being the key to the solution. Reminds me of 70's crime shows without all the histrionics and yelling of Law and Order CSI etc. as well as overcomplicated backstories for its characters. Biggest flaw - the detective regulars are not that interesting except for Louis Ferreira who played Declan on the last season of BREAKING BAD "Say My Name". His character is a gruff mystery.
The first season is the best of the three seasons with the best twists and undiluted by story length arc (which both seasons two and three have although it's not too disruptive). I especially liked the episode based on STRANGERS ON A TRAIN where two people swap unrelated murders.