Therapist Grace Reinhart Sachs makes her living telling people where they’ve gone wrong. She believes that there’s always a moment, usually early in the relationship, when you can see the truth about the other person – a truth you then “forget,” burying it in excuses and desires. In fact, Grace has written a book on the subject, called You Should Have Known.
Her own life seems to hold up under scrutiny: she has a loving marriage, a wonderful son. (She’s also materialistic and judgmental and clearly unaware of just how good she has it, but that’s a whole other thing.)
Then a woman Grace knows only vaguely is murdered, and her perfect husband has disappeared. As her life begins to unravel, Grace keeps asking herself: should she have known?
Unfortunately, it’s not a question the book really answers. (Mild spoilers to follow.)