Corrected entry: The bedroom door to the kids' room is always locked, but when the mother wants to open the door, she does so without a key. Later when the little ghost-clearance expert lady wants to go in, she finds the door locked and the father has to unlock the door with the key.
lartaker1975
5th May 2017
Poltergeist (1982)
Correction: The door was unlocked by the one scientist who went upstairs to investigate what was going on and ended up getting bit by something. The door was still unlocked after he left and was probably locked again later before Tangina arrived.
Correction: They only locked the door after the girl disappeared to keep people out. Not before.
lartaker1975