When young librarian Eleanor Watson accidentally awakens the vengeful spirit of Eliza Blackwood, strange occurrences plague the historic Blackwood Library. Detective Marcus Kane is called in to investigate, uncovering a century-old murder and a dark pact that cursed the town. As Eliza's rage grows, townspeople connected to the past begin dying in horrific ways. Kane and Eleanor race against time to stop Eliza's supernatural revenge, discovering that her soul is tied to an ancient artifact hidden in the library. In a final, desperate battle, they destroy the artifact, severing Eliza's link to the mortal world. The hauntings cease, but a final warning is left behind-some things never stay buried.