If your neighbors will allow you to be friends. Our next door neighbor moved in 2 years ago. We happened to be outside when they first arrived. A man for out of

If your neighbors will allow you to be friends. Our next door neighbor moved in 2 years ago. We happened to be outside when they first arrived. A man for out of the car to open the garage door while a woman stayed in the car staring straight ahead. We tried to engage, but he ignored us, drove into the garage, and shut the door. Since then we have never spoken to them since. Sometimes we will see the man in the middle of the night walk to his mailbox. Occasionally we see the man coming and going in the car. But they (we are assuming there is a they, we’ve never seen the woman since that first day) never come outside during the day or evening hours. They never have any lights on inside the home (and we can see all of their windows from our house), ever. One time a tree on their property blew over into the street. We knocked and knocked on their door and waited a few days. Eventually we and another neighbor cut up the tree and left all the branches and logs on the side of the road. Little by little they’ve been disappearing in their yard debris bins (they do put out and take back in their garbage, recycling, and yard debris bins - though nobody has ever seen them do so). The main way we know they live there is seeing white vapor rising from their utility vents in the winter. Our current guesses are traffickers or witness protection program.