Angie and Paula find their personal boundaries tested when they investigate the murder of an ex-con who may have returned to a life of crime. Meanwhile, Vega is forced to address boundary issues of his own with both Dr. Rogers and Lucas.

Motive is an unconventional way to watch a crime drama unfold. Each episode begins by revealing not only the victim, but the killer as well. It's not a "whodunit", it's a "whydunit", a question faced by spirited female Vancouver homicide detective Angie Flynn as she begins to piece together the clues from the crime. How are the victim and killer connected? What is the motive? As the mystery unfolds, the audience navigates a complicated maze of clues alongside the detective and her team.