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.

Psychologist Margot Scott has a picture-perfect life: a nice house in the suburbs, a husband, two children and a successful career. On a warm spring morning Margot approaches one of her clients on a busy train platform. He is looking down at his phone, with his duffel bag in hand as the train approaches. That’s when she slams into his back and he falls in front of the train. Margot’s clients all lie to her, but one lie cost her family and freedom.

For nearly a year, Beth has been planning for her escape. She's thought through everything - a new look, new name and new city - because one small slip and her husband will find her. A couple hundred miles away, Jeffrey returns home from a work trip to find his wife, Sabine, is missing. Wherever she is, she’s taken almost nothing with her. Her abandoned car is the only evidence the police have, and all signs point to foul play.

When Claire sees Hannah Wilson at an exclusive Manhattan hair salon, it's like a knife slicing through barely healed scars. It may have been 10 years since Claire last saw Hannah, but she has thought of her every day, and not in a good way. So Claire does what anyone would do in her position - she stalks her. Hannah is now Mrs. Carter, living the charmed life that should have been Claire's. It's the life Claire used to have before Hannah came along and took it all away from her.

What if the person you thought you knew best turns out to be someone you never knew at all? Andrea Cooper knows everything about her mother, Laura. She knows Laura has spent nearly her whole life in the small beach town of Belle Isle, Georgia; she knows Laura's never wanted anything more than to lead a quiet, normal life in this conventional community; she knows Laura's a kind and beloved speech pathologist who helps others; she knows Laura's never kept a secret in her life. Andrea knows that Laura is everything she isn't—confident, settled, sure of herself.

Jake Hayes is missing. This much is certain. At first, his wife, Nina, thinks he is blowing off steam at a friend’s house after their heated fight the night before. But then a day goes by. Two days. Five. And Jake is still nowhere to be found. Lily Scott, Nina’s friend and coworker, thinks she may have been the last to see Jake before he went missing. After Lily confesses everything to her husband, Christian, the two decide that nobody can find out what happened leading up to Jake’s disappearance, especially not Nina.

James Casper is one of the good guys. A DEA agent. A loyal husband. With his sights set on the man at the top of the city’s opioid crisis, James is about to make the biggest bust of his career. Then his beloved wife Rosie does something terrible, and James must choose: Report it - or help her. He knows how this works, and he tells himself he’s smart enough to get away with murder. But James’ worst enemy knows what they have done - and he won’t hesitate to use it to manipulate him.

Sydney Green is Brooklyn born and raised, but her beloved neighborhood seems to change every time she blinks. Condos are sprouting like weeds, FOR SALE signs are popping up overnight, and the neighbors she’s known all her life are disappearing. To hold onto her community’s past and present, Sydney channels her frustration into a walking tour and finds an unlikely and unwanted assistant in one of the new arrivals to the block - her neighbor, Theo. But Sydney and Theo’s deep dive into history quickly becomes a dizzying descent into paranoia and fear.

Beth Montgomery seems to have the perfect life: a beautiful house in the hills above Los Angeles, a handsome, ambitious husband, and plans of starting a family. So it doesn't occur to her to worry when the news breaks of a quadruple homicide across town, a botched drug deal that leaves an undercover officer among the dead. Beth certainly would never think to tie the murders to the sudden reappearance in her life of wild, sexy Cassie Ogilvy, the estranged best friend she hasn't seen since they were college roommates.

Catherine Sterling thinks she knows her mother. Ruth Sterling is quiet, hardworking, and lives for her daughter. All her life, it's been just the two of them against the world. But now, Catherine is ready to spread her wings, move from home, and begin a new career. And Ruth Sterling will do anything to prevent that from happening.

Jessie Archer is a member of the Athena Protocol, an elite organization of female spies who enact vigilante justice around the world. Athena operatives are never supposed to shoot to kill - so when Jessie can’t stop herself from pulling the trigger, she gets kicked out of the organization, right before a huge mission to take down a human trafficker in Belgrade. Jessie needs to right her wrong and prove herself, so she starts her own investigation into the trafficking.

Nobody knows what happened to Sarah Cook. The beautiful blonde teenager disappeared 15 years ago, the same night her parents were brutally murdered in their suburban Ohio home. Her boyfriend, Brad Stockton - black and from the wrong side of the tracks - was convicted of the murders and is now on death row. Though he's maintained his innocence all along, the clock is running out. His execution is only weeks away when his devoted sister insists she spied Sarah at an area gas station.

Newlyweds Lina and Cain don’t make it out to their property on gorgeous Lake Tarawera as often as they’d like, so when Cain suggests they rent the house out to vacationers, Lina reluctantly agrees. While the home has been in her family for generations, they could use the extra money. And at first, Lina is amazed at how quickly guests line up, and at how much they’re willing to pay. But both Lina and Cain have been keeping secrets, secrets that won’t be put off by fresh paint or a new alarm system. And someone has been watching them.

FBI Agent Nell Flynn hasn't been home in 10 years. Nell and her father, Homicide Detective Martin Flynn, have never had much of a relationship. When Martin Flynn dies in a motorcycle accident, Nell returns to the house she grew up in so that she can spread her father's ashes and close his estate. At the behest of her father's partner, Detective Lee Davis, Nell becomes involved in an investigation into the murders of two young women in Suffolk County. The further Nell digs, the more likely it seems to her that her father should be the prime suspect.

Maddie and Ian’s love story began with a chance encounter at a party overseas; he was serving in the British army, and she was a travel writer visiting her best friend, Jo. Now, almost two decades later, married with a beautiful son, Charlie, they are living the perfect suburban life in Middle America. But when a camping accident leaves Maddie badly scarred, she begins attending writing therapy, where she gradually reveals her fears about Ian’s PTSD; her concerns for the safety of their young son; and the couple’s tangled and tumultuous past with Jo.