Blackstone is a character-driven drama about the people who are members of the fictional Blackstone First Nation. It is set on a reserve in rural Alberta, about an hour or so drive from "the city" (presumably Edmonton, where the show is filmed). There's coming of age, coming home, coming to grips, and coming apart. It's about death and life and survival.
We find out that Dale Cooper, an FBI agent, has been sent into the town to investigate. What does it mean? He goes to the morgue to inspect the body and finds a letter stuck underneath her ring fingernail, linking her death to a series of murders. Creepy stuff. It starts coming to light that some foul play was definitely involved.