My father looked like he had swallowed a hornet. “You’re bluffing. You wouldn’t put cameras in your own home.”

I walked to a small decorative clock on the bookshelf, twisted it, and a tiny lens glinted. “The living room. The dining room. The kitchen — right there in the smoke detector. Check your phones; I’m sure you posted plenty of videos from inside this house to your social media. The timestamps will match the surveillance perfectly.”