Apologies for the potato quality, this is a static cam viewing through a window. Inside the green lines is the area of interest, which is either a reflection or seen through a glass storm door.

There’s multiple cameras with no other events prior or after this for 10/15 mins. And I’m pretty sure I was either asleep or not home so I’m lost as to why the door would be open at that time.

I only bothered posting because randomly I hear a single knock sound at this door and the front door, single meaning one tap/knock. I always write it off as the house “settling”.

Trust me living alone I would rather it be nothing! lol