It's nine o'clock, you know what means, right? You need to watch the trailer for Insidious: Chapter 3 and be reminded of how scary the first and Chapter 2 were.
Don't be confused by the title, Chapter 3 is actually a prequel to the first film and features the monsters from both the original film and the second. If you have a sharp eye you will see them; they're only there for a split-second.
Chapter 3 will take us on the horrible journey that a father, daughter and psychic are about to embark on. There's a bunch of creepiness in the trailer, footsteps going up a wall, someone behind a curtain, demonic possession — the works.
Here's how the movie is described by the film company: A prequel set before the haunting of the Lambert family that reveals how gifted psychic Elise Rainier reluctantly agrees to use her ability to contact the dead in order to help a teenage girl who has been targeted by a dangerous supernatural entity.