That is creepy.
There was a case of a missing little girl from Lake Tahoe. Years later, she was found living in the back yard of her kidnappers with her 2 children. A friend I worked with lived just down the street and was horrified to learn that was going on right under her nose.
They were running a printing business from the house very near a favorite local restaurant. My good friend ordered business cards from them. She answered the phone