Roos Beckman has a spirit companion only she can see. Ruth—strange, corpse-like, and dead for centuries—is the light of Roos' life. That is, until the wealthy young widow Agnes Knoop visits one of Roos' backroom seances, and the two strike up a connection.

For Dr. Siena Dupont and her ambitious team, the Alpenglow glacier expedition is a career-defining opportunity. But 30 miles into the desolate Deadswitch Wilderness, they discover a missing hiker dangling from a tree, and their satellite phone fails to call out.

In the summer of 1994, psychologist Daniel Hill buys a rustic farmhouse nestled in the rolling hills of West Virginia. Along with his wife and teenage daughter, the family uproots their lives in Ohio and moves south. They are initially seduced by the natural beauty of the country setting. That soon changes when they discover a hidden room in the basement with a well, boarded shut and adorned with crucifixes. Local legends about the previous owner being an exorcist come to light, but by then, all Hell has broken loose.

An alcoholic teacher and father’s world spirals out of control when a former student is killed and he is left with her dog and the dark presence that follows it. Matt Matheny teaches during the day, drinks at night, and barely hides his functioning alcoholism from his veterinarian ex-wife, Lucy, and his six-year-old son, Mikey. His world spirals out of control when a former student is killed, and he's left with her dog, Conehead. But something isn't right with Conehead.

1967: A brutal murder occurs at the Weston State Hospital in West Virginia. To amateur exorcist, Merle Blatty, this shocking story rings of the occult. Fueled by a desire to avenge the deaths of his wife and son, Merle investigates the case, unknowingly stepping into a sinister web spanning decades.