It is midnight on the morning of Halloween, and Jen anxiously waits up for her 18-year-old son, Todd, to return home. But worries about his broken curfew transform into something much more dangerous when Todd finally emerges from the darkness. As Jen watches through the window, she sees her funny, seemingly happy teenage son stab a total stranger.

In 1998, the American Jorgenson family had been on a year-long road trip in Australia. One humid, storming night, the mother - Elsa Jorgenson - vanished in an isolated stretch of Australian everglades. Elsa was never seen again. That night, twelve-year-old Lily Jorgenson was left alone and terrified in the family camper—even her teenage sister Iris is missing. When Iris comes racing back through the rain, she refuses to tell where she’s been. Lily is certain her sister is hiding a dark secret.

Alex Armstrong has changed everything about herself—her name, her appearance, her backstory. She’s no longer the terrified teenager a rapt audience saw on television, emerging in handcuffs from the quiet suburban home the night her family was massacred. That girl, Alexandra Quinlan, nicknamed Empty Eyes, was accused of the killings, fought to clear her name, and later took the stand during her highly publicized defamation lawsuit that captured the attention of the nation. It’s been ten years since, and Alex hasn’t stopped searching for answers about the night her family was killed.

After the sudden death of her husband, Kate Turner is looking for a fresh start for herself and her teenage daughter, Alex. They relocate to the beachside town of Shoreham, Florida, where all is not as sunny as it seems. Although Kate makes fast friends with a trio of fellow moms, their daughters take an instant dislike to Alex, who attempts to document their bullying in her video diary. Kate brushes off Alex’s concerns—until she receives a series of chilling warnings about the clique of moms from other parents and neighbors.

Every town needs a hero, and Detective Cal Farrell fits the bill. He stopped an active shooter six months earlier, and now he’s become the darling of the Alexandria press. The problem is that Cal remembers nothing from that day. He’s working with a psychiatrist to recover his memories, but hasn’t had much luck. Then, on one of his morning runs, he is once again the first on scene for a grisly discovery—a body hanging impossibly high on a tree. Soon there’s another victim, killed by a blade and dumped in a ravine.

Matthew Brooks and Vanessa Lyons are a perfect love match, both attorneys at a powerful New York City law firm. But there’s a hitch: Matt just made partner, and Vanessa is coming up for partner next year. And Vanessa’s husband has his suspicions. Vanessa is assigned to the biggest case at the firm, the one that will determine her future. Unfortunately, Matt has been working the case for years, leaving him no choice but to supervise his lover in violation of firm policy.

After Jake Slater’s wife dies in a tragic hit-and-run, all he has left is his daughter, Piper—nearly lost, too, in a brutal custody battle with his wealthy in-laws. A year later, Jake reluctantly agrees to a reunion with the estranged family for Piper’s thirteenth birthday. Then a single gunshot rings out, and a new nightmare begins. Piper is kidnapped, and her cousin Caitlin is murdered. Caitlin’s cryptic dying words: Piper knows the truth.

Mia and Finn are busy turning a derelict house into their dream home when Mia unexpectedly falls pregnant. But just when they think the house is ready, Mia discovers a shocking message scored into a skirting board: I WILL SAVE THEM FROM THE ATTIC. Following the clue up into the eaves, the couple make a gruesome discovery: their home was once a real-life murder house, with the evidence still concealed within the four walls.

When a teen falls while taking a selfie at the edge of a cliff, the last thing she sees before plummeting to her death is Katie Harmon, the nine-year-old girl she was babysitting, looking down at her. Investigators gather at the scene, and Katie’s mother, Sara, rushes to comfort her daughter. Yet there’s a small, secret ping of alarm in Sara’s heart that she cannot share—though rookie detective Kim Pierce senses it. For years, others have tried to unravel this secret. Now, Sara is consumed by her darkest fear—that the babysitter’s death was not an accident.

When Anna Bradshaw wakes up in a hospital bed in London, she remembers nothing, not even her loving husband, Stephen. The doctors say her amnesia is to be expected, but Anna feels cut adrift from her entire life. In Bristol, Livvy Nicholson is newly married to Dominic and eager to get back to work after six months’ maternity leave. But when Dominic’s estranged mother appears, making a series of unnerving claims, Livvy is sucked into a version of herself she doesn’t recognise.

After his son is convicted of capital murder, Vietnam War veteran Jeremiah Fitzjurls takes over the care of his granddaughter, Joanna, raising her with as much warmth as can be found in an Ozark junkyard outfitted to be an armory. He teaches her how to shoot and fight, but there is not enough training in the world to protect her when the dreaded Ledfords, notorious meth dealers and fanatical white supremacists, come to collect on Joanna as payment for a long-overdue blood debt.

Electra McDonnell has always known that the way she and her family earn their living is slightly outside of the law. Breaking into the homes of the rich and picking the locks on their safes may not be condoned by British law enforcement, but World War II is in full swing, Ellie's cousins, Colm and Toby, are off fighting against Hitler, and Uncle Mick's more honorable business as a locksmith can't pay the bills anymore. So when Uncle Mick receives a tip about a safe full of jewels in the empty house of a wealthy family, he and Ellie can’t resist.

Early one morning on the shore of the Thames, DCI Samuel Owusu is called to the scene of a gruesome discovery. When Owusu sends the evidence for examination, he learns the bones are connected to a cold case that left three people dead on the kitchen floor in a Chelsea mansion thirty years ago. Rachel Rimmer has also received a shock—her husband, Michael, has been found dead in the cellar of his house in France. All signs point to an intruder, and the French police need her to come urgently to answer questions about Michael and his past that she very much doesn’t want to answer.

If Avery Chambers can’t fix you in 10 sessions, she won’t take you on as a client. Her successes are phenomenal—she helps people overcome everything from domineering parents to assault—and almost absorbs the emptiness she sometimes feels since her husband’s death. Marissa and Mathew Bishop seem like the golden couple—until Marissa cheats. She wants to repair things, both because she loves her husband and for the sake of their eight-year-old son. After a friend forwards an article about Avery, Marissa takes a chance on this maverick therapist.

On a warm summer morning in North Carthage, Missouri, it is Nick and Amy Dunne’s fifth wedding anniversary. Presents are being wrapped and reservations are being made when Nick’s clever and beautiful wife disappears. Husband-of-the-Year Nick isn’t doing himself any favors with cringe-worthy daydreams about the slope and shape of his wife’s head, but passages from Amy's diary reveal the alpha-girl perfectionist could have put anyone dangerously on edge.