There are nights when all we want to do is curl up in bed and watch a horror movie. We all love doing that, but what makes a scary movie scarier is knowing that it is based on a true story. Knowing that somebody actually went through that terror in reality is something that does not let one sleep easily.

Here are 25 horror movies based on true incidents that you absolutely need to see:

#25. The Exorcist (1973)

The Exorcist is based on a book which is based on real life of a boy named Roland Doe who was possessed by demons in 1949. The exorcism was so scary that there have been books written on people who witnessed it. This story will give you goosebumps, all for real reasons.1

#24. The Texas Chainsaw Massacre (1974)

This movie is loosely based on America’s famous serial killer Ed Gein who had nine human skin masks in his possession at the time of his arrest. Spooky, isn’t it?

#23. A Nightmare On Elm Street (2010)

Love blood, gore and knife-fingered ghosts? This is it then. The makers of this movie were inspired by a group of Laotian refugees who had died in throes of a nightmare. The medical reports said there was nothing wrong with them physically.

#22. Child’s Play (1988)

The script was based on a nurse who allegedly put a voodoo curse on author Robert Eugene Otto which transformed one of his childhood dolls into a night-time menace. We all have seen scary movies with possessed dolls but knowing that the doll really existed is spooky!

#21. The Amityville Horror (2005)

The movie is based on the events that took place in 1975 at 112, Ocean Avenue, the new house of the Lutz family in Amityville. This has been a very discussed case among paranormal researchers. There have been reports that the story is fake but horror still stays when you hear about Amityville.

#20. Psycho (1960)

This thriller-horror movie is loosely inspired by Ed Gein’s crimes and Wisconsin murders. There have been various follow-ups of this movie. It is an absolute must watch.