At first glance, Phil Pendleton and his son Adam are just an ordinary father and son, no different from any other. What no one knows is that Phil is a prisoner, and that up until a few weeks ago and a chance encounter at a grocery store, he had never seen the child before in his life.

1983: Three students from a small college embark on a week-long road trip to film a documentary on roadside memorials for their American Studies class. The project starts out as a fun adventure with long stretches of empty road and nightly campfires where they begin to open up with one another. But as they venture deeper into the Appalachian backwoods, the atmosphere begins to darken. They notice more and more of the memorials feature a strange, unsettling symbol hinting at a sinister secret.

Connie can't deny she's nervous about meeting her boyfriend's family. Spending the weekend at their ritzy woodland summer home, Evan's already given her fair warning that his parents are cold, snobbish, and especially unpleasant toward those outside their usual social circles. So when Evan's mother warmly greets them with open arms, Connie is as confused as he is. They're so friendly, in fact, Evan himself can hardly believe they're real. Then, while helping Evan's mother with dinner, Connie overhears strange noises coming from the basement—what almost sounds like voices calling out for help.

On a sunny morning in June, Margaret Carpenter wakes up to find a new iPhone on her doorstep. She switches it on to find a text from her best friend, Charity Atwater. The problem is, Charity’s been missing for over a month. Most people in town—even the police—think she’s dead. Margaret and Charity have been lifelong friends. They share everything, know the most intimate details about one another…except for the destructive secret hidden from them both. A secret that will trigger a chain of events ending in tragedy, bloodshed, and death. And now Charity wants Margaret to know her story.

Mary is a quiet middle-aged woman doing her best to blend into the background. Unremarkable. Invisible. Unknown even to herself. But lately, things have been changing inside Mary. Along with the hot flashes and body aches, she can’t look in a mirror without passing out, and the voices in her head have been urging her to do unspeakable things. Fired from her job in New York, she moves back to her hometown hoping to reconnect with her past and inner self. What she finds instead are visions of terrifying mutilated specters that come with increasing regularity.