But as I sat there, something in me snapped. The “poor girl” they mocked had learned one thing they never had to: How to survive by being smarter than everyone else in the room.

Over the next year, I became the perfect daughter-in-law. I volunteered to help Evelyn with her “charity” foundation. I helped Marcus “manage” his investments when he was too hungover to read a spreadsheet. I made myself indispensable. I became the keeper of their secrets—and there were many.