When twin brothers Hal and Bill discover their father’s old monkey toy in the attic, a series of gruesome deaths starts occurring all around them. The brothers decide to throw the monkey away and move on with their lives, growing apart over the years. But when the mysterious deaths begin again, the brothers must reunite to find a way to destroy the monkey for good before it takes the lives of everyone close to them.

Written and directed by Osgood Perkins, starring Theo James, Tatiana Maslany, Elijah Wood, Christian Convery, Colin O'Brien, Rohan Campbell, and Sarah Levy. It is based on Stephen King's 1980 short story and is produced by James Wan.