With ‘The Possession’ being released in theaters at the end of this month, Lionsgate has unveiled the first clip of the horror flick that is based on a true story. This one is not for the squeamish.

The film centers on a family who find themselves in a possession of an antique wooden box purchased at a yard sale. The youngest daughter Em, suddenly becomes oddly obsessed with the object and begins to exhibit behavior that is becoming increasingly erratic. Later the parents find that the box has an evil curse and was built to contain a dybbuk, a Jewish spirit that inhabits and ultimately devours its human host.

The premise is scary enough but the fact that the story is based on true events makes this film a bit more chilling. The full article (and the basis of the movie) about this haunted box was first published in 2004 in the Los Angeles Times.

The script was written by Juliet Snowden and Stiles White, the team that also wrote ‘Knowing,’ ‘Bogeyman’ and has been pegged to pen the screenplay for ‘Ouija’ and the reboot of ‘Poltergeist‘. Directed by Ole Bornedal (‘Nightwatch’) and produced by horror master Sam Raimi, this may be the best of the four horror films released this month (the others being ‘The Awakening‘, ‘The Tall Man‘, and ‘The Apparition’).

Check out the clip below and if you want to see more of ‘The Possession,’ you can also watch the trailer that was released a while back.

‘The Possession’ Clip #1:

‘The Possession’ will be in theaters beginning August 31st.