SPOILER ALERT: the following article contains massive spoilers, including the ending. If you have not yet seen the movie, proceed at your own risk, or better, come back to this article later!
SPOILERS AHEAD
Insidious: The Red Door Plot Summary and Synopsis
A horror film that continues the Insidious franchise, following a new family that is haunted by a demonic entity that lurks behind a mysterious red door.
Source: Wikipedia (CC BY-SA 3.0).