My Mother-in-Law Tried to Take Over Our New House—Then Froze at 10:55 P.M. When She Saw Who Was Inside.

“Daniel gave me that key,” Linda announced triumphantly.

“He had a copy made without telling me,” I replied.

I showed them the smart-lock activity recorded on my phone, which revealed that Linda had tested her access while Daniel and I were shopping the previous afternoon. I had already changed the electronic access code, and a locksmith was scheduled to rekey the deadbolt later that day.