After reading about the aluminum foil trick, I decided to test it for myself. Before going to bed, I carefully wrapped foil around the outside door handle and pressed the edges firmly so I would notice even the slightest movement. It seemed almost ridiculous, but I wanted something simple that could tell me whether anyone had touched the door during the night. I went to sleep expecting nothing unusual. The next morning, however, I walked toward the entrance and immediately stopped. The foil was no longer smooth and tightly wrapped like I had left it. One corner had been pulled downward, and several deep wrinkles ran across the surface. For a moment, I wondered whether I had simply done a poor job wrapping it.

I reached for the handle, then pulled my hand back. Something about the damage looked deliberate. The door itself was still locked, and there were no obvious signs of forced entry. I checked the windows and looked around the porch, trying to convince myself there was a harmless explanation. Then I noticed another detail that made my stomach tighten. A tiny piece of foil had fallen onto the floor just beneath the handle, even though I remembered pressing every edge firmly against the metal. I picked it up and stared at the torn piece, wondering whether someone had actually touched my door during the night. That was when I decided to check what my outdoor camera had recorded.