Lynnette Tarkington is a real-life final girl who survived a massacre. For more than a decade, she’s been meeting with five other final girls and their therapist in a support group for those who survived the unthinkable, working to put their lives back together. Then one woman misses a meeting, and their worst fears are realized - someone knows about the group and is determined to rip their lives apart again, piece by piece.

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.

Patricia Campbell's life has never felt smaller. Her ambitious husband is too busy to give her a goodbye kiss in the morning, her kids have their own lives, her senile mother-in-law needs constant care, and she's always a step behind on thank-you notes and her endless list of chores. The one thing she has to look forward to is her book club, a close-knit group of Charleston women united by their love of true crime and paperback fiction. At these meetings they're as likely to talk about the Manson family as they are marriage, motherhood, and neighborhood gossip.

Marcus grew up believing his father killed his mother—then blamed it on the boogeyman under the bed. Always leave the lights on, his father warned, or the boogeyman will get you. Marcus still heeds the superstition, especially when he invites his new girlfriend over. Is Marcus haunted by a creature or has he just inherited his father’s murderous delusions? The night will tell.

They call them wayward girls. Loose girls. Girls who grew up too fast. And they’re sent to Wellwood House in St. Augustine, Florida, where unwed mothers are hidden by their families to have their babies in secret, to give them up for adoption, and most important of all, to forget any of it ever happened. Everything the girls eat, every moment of their waking day, and everything they’re allowed to talk about is strictly controlled by adults who claim they know what’s best for them.

Eric Ross is on the run from a mysterious past with his two daughters in tow. Having left his wife, his house, his whole life behind in Maryland, he's desperate for money—it's not easy to find steady, safe work when you can't provide references, you can't stay in one place for long, and you're paranoid that your past is creeping back up on you.

When Margaret and her husband Hal bought the large Victorian house on Hawthorn Street—for sale at a surprisingly reasonable price—they couldn’t believe they finally had a home of their own. Then they discovered the hauntings. Every September, the walls drip blood. The ghosts of former inhabitants appear, and all of them are terrified of something that lurks in the basement. Most people would flee. Margaret is not most people. Margaret is staying.

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.

In a boarded-up house on a dead-end street at the edge of the wild Washington woods lives a family of three. A teenage girl who isn’t allowed outside, not after last time. A man who drinks alone in front of his TV, trying to ignore the gaps in his memory. And a house cat who loves napping and reading the Bible. An unspeakable secret binds them together, but when a new neighbor moves in next door, what is buried out among the birch trees may come back to haunt them all.

To eight-year-old Bela, her family is her world. There’s Mommy, Daddo, and Grandma Ruth. But there is also Other Mommy, a malevolent entity who asks her every day: “Can I go inside your heart?” When horrifying incidents around the house signal that Other Mommy is growing tired of asking Bela the question over and over, Bela understands that unless she says yes, her family will soon pay. Other Mommy is getting restless, stronger, bolder. Only the bonds of family can keep Bela safe, but other incidents show cracks in her parents’ marriage. The safety Bela relies on is about to unravel.

Ana and Reid needed a lucky break. The horrifically complicated birth of their first child has left Ana paralyzed, bitter, and struggling: with mobility, with her relationship with Reid, with resentment for her baby. That's about to change with the words any New Yorker would love to hear—affordable housing lottery. They've won an apartment in the Deptford, one of Manhattan's most revered buildings. Reid dismisses disturbing events and Ana’s deep unease and paranoia as the price of living in New York—people are odd—but he can't explain the needle-like bite marks on the baby.

"Mom seems off." Her brother's words echo in Sam Montgomery's ear as she turns onto the quiet North Carolina street where their mother lives alone. She brushes the thought away as she climbs the front steps. Sam's excited for this rare extended visit, and looking forward to nights with just the two of them, drinking boxed wine, watching murder mystery shows, and guessing who the killer is long before the characters figure it out. But stepping inside, she quickly realizes home isn’t what it used to be.

It’s the house of their dreams. Former marine Harry and his wife, Sasha, have packed up their life and their golden retriever, Dash, and fled the corporate rat race to live off the land in rural Idaho. Their breathtaking new home sits on more than forty acres of meadow, aspen trees, and pine forest in the Teton Valley. Even if their friends and family think it’s a strange choice for an up-and-coming pair of urban professionals, Harry and Sasha couldn’t be happier about the future they’re building, all by their lonesome.

When Alex Easton, a retired soldier, receives word that their childhood friend Madeline Usher is dying, they race to the ancestral home of the Ushers in the remote countryside of Ruritania. What they find there is a nightmare of fungal growths and possessed wildlife, surrounding a dark, pulsing lake. Madeline sleepwalks and speaks in strange voices at night, and her brother Roderick is consumed with a mysterious malady of the nerves. Aided by a redoubtable British mycologist and a baffled American doctor, Alex must unravel the secret of the House of Usher before it consumes them all.

An 11-year-old boy's violated corpse is found in a town park. Eyewitnesses and fingerprints point unmistakably to one of Flint City's most popular citizens. He is Terry Maitland, Little League coach, English teacher, husband, and father of two girls. Detective Ralph Anderson, whose son Maitland once coached, orders a quick and very public arrest. Maitland has an alibi, but Anderson and the district attorney soon add DNA evidence to go with the fingerprints and witnesses. Their case seems ironclad.