Like any other teenage girl, Tara is just surviving high school — yet her father and mother seem strangely distant. Amidst a nearby spree of gruesome ax murders, Tara has sightings of terrifying entities, forcing her to question her own sanity and shocking ancestry.

A young woman struggling with addiction comes into possession of an ancient puzzle box, unaware that its purpose is to summon the Cenobites, a group of sadistic supernatural beings from another dimension.