Books like Dark Triad by Steve Madison

When a commuter train ride turns into a shocking glimpse of another life, Rachel’s curiosity pulls her deep into a murder mystery that challenges her own sense of reality.

Jack Reacher, an ex‑military policeman, arrives in Margrave, Georgia, only to be arrested for murder—an accusation he insists is false, but in a town where he has no allies, his pursuit of truth becomes a race against time.

U.S. Marshals Teddy Daniels and Chuck Aule investigate a missing patient on Shutter Island’s Ashcliffe Hospital, only to confront sinister experiments and psychological horrors that threaten their sanity.

Jason Bourne, a deep‑cover operative with no memory, is rescued after a beachwreck and discovers a bank account embedded in his body that leads him to Switzerland and the truth about his past.

Mickey Haller, a cynical Los Angeles criminal defense lawyer, tackles a high‑paying case that turns out to be far more dangerous than it first appears.

"I very much need to be dead." These are the chilling last words left by a man who had everything to live for but took his own life. In the void that remains stands his widow, FBI agent Jane Hawk, surrounded by questions destined to go unanswered unless she does what all the grief and fury inside her demand: Find the truth, no matter what. People of talent and accomplishment, people seemingly happy and sound of mind, have recently been committing suicide in surprising numbers. A disturbing pattern is beginning to emerge. Jane is determined to give up everything to find out why. And if that means going rogue and becoming America's Most Wanted, then so be it. Those arrayed against her are legion, and devoted to protecting something profoundly important-or terrifying-enough to exterminate any and all in their way. But Jane is as clever as these enemies are cold-blooded, as relentless as they are ruthless. And she is driven by a righteous rage they can never comprehend. Because it is born of love.