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.

Marin had the perfect life. Married to her college sweetheart, she owns a chain of upscale hair salons, and Derek runs his own company. They're admired in their community and are a loving family—until their world falls apart the day their son, Sebastian, is taken. A year later, Marin is a shadow of herself. The FBI search has gone cold. The publicity has faded. She and her husband rarely speak. She hires a PI to pick up where the police left off, but instead of finding Sebastian, she learns that Derek is having an affair with a younger woman.

Intimacy has always eluded 27-year-old Maggie Krause - despite being brought up by married parents, models of domestic bliss - until, that is, Lucia came into her life. But when Maggie’s mom, Iris, dies in a car crash, Maggie returns home only to discover a withdrawn dad, an angry brother, and, along with Iris' will, five sealed envelopes, each addressed to a mysterious man she’s never heard of. In an effort to run from her own grief and discover the truth about Iris - who made no secret of her discomfort with her daughter's sexuality - Maggie embarks on a road trip.

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.

Selena Murphy is commuting home on the train when she strikes up a conversation with a beautiful stranger in the next seat. The woman introduces herself as Martha and soon confesses that she’s been stuck in an affair with her boss. Selena, in turn, confesses that she suspects her husband is sleeping with the nanny. When the train arrives at Selena’s station, the two women part ways, presumably never to meet again.

Jen and Riley have been best friends since kindergarten. As adults, they remain as close as sisters, though their lives have taken different directions. Jen married young, and after years of trying, is finally pregnant. Riley pursued her childhood dream of becoming a television journalist and is poised to become one of the first Black female anchors of the top news channel in their hometown of Philadelphia. But the deep bond they share is severely tested when Jen’s husband, a city police officer, is involved in the shooting of an unarmed Black teenager.

When former journalist Rain Winter was 12 years old, she narrowly escaped an abduction while walking to a friend’s house. The abductor was eventually found and sent to prison, but years later was released. Then someone delivered real justice - and killed him in cold blood. Now Rain is living the perfect suburban life, spending her days as a stay-at-home mom. But when another criminal who escaped justice is found dead, Rain is unexpectedly drawn into the case.

Growing up poor in rural Georgia, Bree Cabbat’s single mother warned her that the world was a dark and scary place. Bree rejected her mother’s fearful outlook, and life has proved her right. Marrying into a family with wealth, power, and connections, Bree has all a woman could ever dream: a loving lawyer husband, two talented young teenage daughters, a new baby boy, a gorgeous home, and every opportunity in the world. Until the day Bree awakens and sees a witch peering into her bedroom window, an old gray-haired woman all dressed in black who vanishes as quickly as she appears.

Twenty-one-year-old Tanner Quimby needs a place to live. Preferably one where she can continue sitting around in sweatpants and playing video games nineteen hours a day. Since she has no credit or money to speak of, her options are limited, so when an opportunity to work as a live-in caregiver for an elderly woman falls into her lap, she takes it. The two start off their living arrangement happily ignoring each other until Tanner starts to notice things—weird things.

Framed for embezzlement by her best friend, Aimee, museum curator Kacy Tremain and her husband, Michael, move from New Jersey to a charming Texas suburb to escape their past. Kacy quickly makes new friends - preppy, inscrutable Elizabeth; chatty yet evasive Rahmia; and redheaded, unapologetic Lena. But good friends aren't always what they seem.

When Alex arrives in Provincetown to patch things up with his new wife, Mina, he finds an empty wine glass in the sink, her wedding ring on the desk, and a string of questions in her wake. The police believe that Mina, a successful romance author, simply left, their marriage crumbling before it truly began. But what Alex finds in their empty cottage points him toward a different reality: Mina has always carried a secret. And now she's disappeared.

Emma Walsh has finally worked up the courage to confront her husband James about his drinking. But James never shows up to meet her as planned, and all her righteous words go unsaid. And unsaid they remain, because the next time Emma sees James, his body lies crumpled amidst the wreckage of his flashy car.

Camille Gardener is a grieving - and angry - mother who, five years after her daughter’s death, is still obsessed with the privileged young man she believes to be responsible. When her rash actions draw the attention of a secret group of women - the collective - Camille is drawn into a dark web where these mothers share their wildly different stories of loss as well as their desire for justice in a world where privilege denies accountability. Fueled by mutual rage, the collective members devise and act out retribution fantasies via anonymous, highly coordinated revenge killings.

Emily Bennett works as a therapist in Pennsylvania, helping children overcome their troubled pasts—even as she struggles to forget her own. Once upon a time, Emily was part of a middle school clique called the Harpies—six popular girls who bullied the new girl to her breaking point. The Harpies took a blood oath: never tell a soul what they did to Grace Farmer. Now, fourteen years later, it seems karma has caught up to them when one member of that vicious circle commits suicide.

Lana Stone has never considered herself a stalker - until the night she impulsively follows a familiar face through the streets of New York's Upper West Side. Her target? The "anonymous" egg donor she'd selected through an agency, the one who's making motherhood possible for her. Hungry to learn more about her, Lana plans only to watch her from a distance. But when circumstances bring them face-to-face, an unexpected friendship is born.