A Long Island couple drives all day to reach their home following a Maine vacation.

When they return to their hometown, they try to interact with the people that are a regular part of their lives. But, it is as if no one realizes that they are there.

They make a phone call and the party on the other end can\'t hear them. They ring a doorbell and someone comes to the door and can\'t see them. In every way, it is as if they are not there at all.

This quickly grows frustrating and eerie.

Then, there\'s a knock at the door.......