No visitors. No nights spent away from the apartment. No disturbing the other residents, all of whom are rich or famous or both. These are the only rules for Jules Larsen’s new job as an apartment sitter at the Bartholomew, one of Manhattan's most high-profile and mysterious buildings. As she gets to know the residents and staff of the Bartholomew, Jules finds herself drawn to fellow apartment sitter Ingrid. When Ingrid confides that the Bartholomew is not what it seems, Jules brushes it off as a harmless ghost story...until the next day, when Ingrid disappears.

Two Truths and a Lie. The girls played it all the time in their cabin at Camp Nightingale. Vivian, Natalie, Allison, and first-time camper Emma Davis, the youngest of the group. But the games ended the night Emma sleepily watched the others sneak out of the cabin into the darkness. The last she - or anyone - saw of them was Vivian closing the cabin door behind her, hushing Emma with a finger pressed to her lips. Now a rising star in the NYC art scene, Emma's paintings catch the attention of Francesca Harris-White, the socialite and wealthy owner of the very same Camp Nightingale.

Now reduced to a schoolyard chant, the Hope family murders shocked the Maine coast one bloody night in 1929. While most people assume seventeen-year-old Lenora was responsible, the police were never able to prove it. Other than her denial after the killings, she has never spoken publicly about that night, nor has she set foot outside Hope’s End, the cliffside mansion where the massacre occurred. It’s now 1983, and home-health aide Kit McDeere arrives at a decaying Hope’s End to care for Lenora after her previous nurse fled in the middle of the night.

Ten years ago, six friends went on vacation. One made it out alive... In that instant, college student Quincy Carpenter became a member of a very exclusive club - a group of survivors the press dubbed “The Final Girls”: Lisa, who lost nine sorority sisters to a college dropout's knife; Sam, who endured the Sack Man during her shift at the Nightlight Inn; and now Quincy, who ran bleeding through the woods to escape the massacre at Pine Cottage. Despite the media's attempts, the three girls have never met.

Josh Baxter, the man behind the wheel, is a virtual stranger to Charlie. They met at the campus ride board, each looking to share the long drive home to Ohio. Both have good reasons for wanting to get away. For Charlie, it’s guilt and grief over the shocking murder of her best friend, who became the third victim of the man known as the Campus Killer. For Josh, it’s to help care for his sick father - or so he says.

Upstate New York, 1982. Viv Delaney wants to move to New York City, and to help pay for it she takes a job as the night clerk at the Sun Down Motel in Fell, New York. But something isnʼt right at the motel, something haunting and scary. Upstate New York, 2017. Carly Kirk has never been able to let go of the story of her aunt Viv, who mysteriously disappeared from the Sun Down before she was born. She decides to move to Fell and visit the motel, where she quickly learns that nothing has changed since 1982.

Casey Fletcher, a recently widowed actress trying to escape a streak of bad press, has retreated to the peace and quiet of her family’s lake house in Vermont. Armed with a pair of binoculars and several bottles of bourbon, she passes the time watching Tom and Katherine Royce, the glamorous couple living in the house across the lake. They make for good viewing—a tech innovator, Tom is powerful; and a former model, Katherine is gorgeous.

Sarah Morgan is one of the best criminal defense attorneys in Washington, DC. With a perfect case record and having made named partner before the age of thirty-five, her life is going exactly as she planned. However, the same cannot be said for her husband, Adam, a failed author, who’s grown to resent his wife’s meteoric success as he feels it’s come at the expense of their relationship.

Fresh out of rehab, Mallory Quinn takes a job as a babysitter for Ted and Caroline Maxwell. She is to look after their five-year-old son, Teddy. Mallory immediately loves it. She has her own living space, goes out for nightly runs, and has the stability she craves. And she sincerely bonds with Teddy, a sweet, shy boy who is never without his sketchbook and pencil. His drawings are the usual fare: trees, rabbits, balloons. But one day, he draws something different: a man in a forest, dragging a woman’s lifeless body.

In 1977, Claire Lake, Oregon, was shaken by the Lady Killer Murders: Two men, seemingly randomly, were murdered with the same gun, with strange notes left behind. Beth Greer was the perfect suspect - a rich, eccentric 23-year-old woman, seen fleeing one of the crimes. But she was acquitted, and she retreated to the isolation of her mansion.

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.

1920s England. Sarah Piper’s lonely, threadbare existence changes when her temporary agency sends her to assist an obsessed ghost hunter. Alistair Gellis—rich, handsome, and scarred by World War I—has been summoned to investigate the spirit of the nineteen-year-old maid Maddy Clare, who is said to haunt the barn where she committed suicide.

1988. Beth Soames is 14 years old when her aunt takes her to stay at Raven Hall, a rambling manor on the Norfolk coast. The Averells, the family who lives there, are warm and welcoming, and Beth becomes fast friends with their daughter, Nina. At times, Beth even feels like she's truly part of the family...until they ask her to help them with a harmless game - and nothing is ever the same.

Brecken Hill in upstate New York is an expensive place to live. You have to be rich to have a house there, and Fred and Sheila Merton certainly are rich. But even all their money can't protect them when a killer comes to call. The Mertons are brutally murdered after a fraught Easter dinner with their three adult kids. Who, of course, are devastated.

Episode Thirteen takes them to every ghost hunter's holy grail: the Paranormal Research Foundation. This brooding, derelict mansion holds secrets and clues about bizarre experiments that took place there in the 1970s. It's also famously haunted, and the team hopes their scientific techniques and high tech gear will prove it. But as the house begins to reveal itself to them, proof of an afterlife might not be everything Matt dreamed of.