“Intervention” by Terri Blackstock is a dark and suspenseful psychological thriller series centered on Detective Helen Foster, a troubled and brilliant investigator haunted by her own past. The books explore the dark underbelly of Los Angeles, delving into obsessive crimes, unreliable narrators, and the blurred lines between sanity and madness with a relentlessly gritty and atmospheric tone. Blackstock’s signature style combines intricate plotting with deeply flawed, morally ambiguous characters.


