After experiencing what they think are a series of "break-ins", a family sets up security cameras around their home, only to realize that the events unfolding before them are more sinister than they seem.

Daniel Rey: [while looking for Hunter in the basement] Fuck! Hunter!
[first lines]
Kristi Rey: Welcome home, Hunter, this is your house. Gonna look out that window. There's your front door.
[last lines]
Kristi Rey: Daniel, is that you? Katie?
Ali Rey: It wasn't Witchy! It made her feel better.
Ali Rey: I don't know if the house is haunted, but I hope it is.
Daniel Rey: We just can't let this affect us that much. If we do that, the terrorists win.
Daniel Rey: Hey! Who left the front door open?