Emma Carpenter lives in isolation with her golden retriever Laika, house-sitting an old beachfront home on the rainy Washington coast. Her only human contact is her enigmatic old neighbor, Deek, and (via text) the house’s owner, Jules. One day, she reads a poorly written—but gruesome—horror novel by the author H. G. Kane, and posts a one-star review that drags her into an online argument with none other than the author himself. Soon after, disturbing incidents start to occur at night.

Dan is a professional ghost hunter who’s never actually found a ghost. But his newest case is promising: a cursed Russian rifle allegedly haunted by a demon. Anyone who touches the antique weapon dies within 24 hours. But for Dan, it’s personal - he’s still mourning the death of his fiancée Adelaide, and he’s desperate to find proof that ghosts exist. At any cost.

Three months ago, Lena Nguyen’s estranged twin sister, Cambry, drove to a remote bridge 60 miles outside of Missoula, Montana, and jumped 200 feet to her death. At least, that is the official police version. But Lena isn’t buying it. Now she’s come to that very bridge, driving her dead twin’s car and armed with a cassette recorder, determined to find out what really happened by interviewing the highway patrolman who allegedly discovered her sister’s body.

Darby Thorne is a college student stranded by a blizzard at a highway rest stop in the middle of nowhere. She’s on the way home to see her sick mother. She’ll have to spend the night in the rest stop with four complete strangers. Then she stumbles across a little girl locked inside one of their parked cars. There is no cell phone reception, no telephone, no way out because of the snow, and she doesn’t know which one of the other travelers is the kidnapper.

Jess needs a fresh start. She’s broke and alone, and she’s just left her job under less than ideal circumstances. Her half-brother Ben didn’t sound thrilled when she asked if she could crash with him for a bit, but he didn’t say no, and surely everything will look better from Paris. Only when she shows up – to find a very nice apartment, could Ben really have afforded this? – he’s not there.