Within the first few scenes of the first episode, Sabrina's favourite teacher Ms. Wardwell is brutally murdered by a demonic entity. The show doesn't shy away from showing the bloody aftermath. While it's not quite Walking Dead levels of gross, for the most part (aside from a gruesome cannibalistic ritual later in the season), there's no discretion shots either. Throughout the series, acts of violence take place on and off at a similarly explicit level, and bloodshed itself is a plot point.