The twist in 'You Should Have Known' is a masterclass in psychological manipulation. The protagonist, Grace, starts as a successful therapist who believes she can spot deception a mile away, especially after writing a book about it. But the rug is pulled out from under her when she discovers her own husband is a murderer, and worse—she never saw it coming despite her expertise. The irony is brutal.
What makes it sting even more is how the narrative flips her confidence into vulnerability. She’s forced to confront her blind spots, not just in her marriage but in her profession. The twist isn’t just about the crime; it’s about the collapse of her worldview. The story cleverly uses her arrogance against her, showing that self-awareness isn’t immunity against betrayal. The layers of deception run so deep that even the reader is left questioning every interaction.