I kept the neurologist appointment, but I went alone, before the date he had scheduled. I took every test. My memory was completely normal. I’m just a busy, distracted person, the doctor said, like millions of other people. She was horrified when I showed her the email. Then I hired a lawyer, handed her the footage, the folder, and the draft documents, and changed the locks while Desmond was at work.

The divorce was quick once his lawyer saw the videos. Desmond got nothing from the lake house, and Celine stopped answering his calls when she learned there would be no sale. I sent the security guard a thank-you card and a cake. I still forget my phone sometimes, and my coffee still goes cold in the microwave. But now I laugh about it. And every Saturday, I park in row C7, and my SUV is always exactly where I left it.