Carmen Sanchez is a tough Homeland Security agent who plays by the rules. But when her sister is attacked, revealing a connection to a series of murders across Southern California, she realizes a conventional investigation will not be enough to stop the ruthless perpetrator. With nowhere else to turn, Sanchez enlists the aid of Professor Jake Heron, a brilliant and quirky private security expert who, unlike Sanchez, believes rules are merely suggestions. The two have a troubled past, but he owes her a favor and she’s cashing in.

When Anna Hartley’s husband, Henry, calls her with a terrible, guilty confession, she can’t believe what she hears. It has to be a bad joke—the mild, predictable artist she married would never hurt a fly, let alone commit murder. But her confusion turns to horror when police find his body washed up on the banks of the Rio Grande.

The night of their senior picnic, Scarlett Russo and her best friend Pepper were involved in a car accident that left two of their classmates dead. Afterward, they lied to the police, protecting each other from the consequences. Then Pepper left town and Scarlett never heard from her again.

Everyone knows about the fight between Kathleen Walsh and her sister on the night she disappeared. For six months, no one has heard from Kathleen. Not her bullying husband, not her teenage son, and not her devastated sister Siobhan. But then Kathleen’s purse is found by a walker high up on the rocky Irish sea cliffs. The only thing inside is a torn scrap of paper with the words ‘HELP ME’. For Siobhan, it’s a chance to find her sister and fix the mistake she made six months ago. But not everyone in the tight-knit community welcomes Siobhan’s interest in the disappearance.

When her husband goes missing, Marissa Creighton fears the worst. Tell me you trust me was the last thing Ethan said to her, and she’d shrugged it off. Now she can’t get those words out of her head. Marissa’s family has always been her rock. But when they come to help her with eighteen-month-old Logan, their overprotectiveness borders on oppression—occupational hazard of the family’s surveillance business, or is it? Seeking comfort in the playlist she and Ethan share, Marissa is shocked to find a new song there: “Trust Me.” She’s certain it’s a message.

After his wife and two children are killed in a car crash, Ryan Tapia starts a new life in Maine. But his first case there is a puzzling oddball—the corpse of a fisherman washes up on federal land, while the man's boat drifts into waters that are part of an Indian reservation.

Years after a breakdown and a diagnosis of dissociative identity disorder derailed her historical preservationist career, Kenetria Nash and her alters have been given a second chance they can’t refuse: a position as resident caretaker of a historic home. Having been dormant for years, Ken has no idea what led them to this isolated Hudson River island, but she’s determined not to ruin their opportunity.

Sabrina Adams thought her luck had finally turned around when she was hired as a librarian for the wealthy Dorsey family. But as soon as she arrives at their elegant estate, she senses something is off. They have cameras everywhere. She’s banned from the third floor, and she spotted someone watching the house from the nearby woods. And why does the housekeeper, Mrs Manning, insist on so many rules?

It happens more than you might think. One second someone’s life is totally typical, the next it’s terribly tragic. Everything they had, everything they planned, everything they were, all of it vanishes in a flash. Shock and sorrow leave the victim staring into tomorrow’s void, wondering: How did it happen? Who did it? And why?

Socially awkward Chloe Cooper divides her time between dog walking, bartending, caring for her ailing mother, and at a safe distance, watching people and inventing the stories of their lives. Like Chloe’s new neighbors: glamorous influencer Jemma Spengler and Jemma’s husband, Adam, a renowned surgeon. They’re attractive, wealthy, and in a house of open windows, so exposed.

On an ordinary Monday morning, Ariel Cafferty's phone buzzes with a disturbing text message. Something’s happened. I need to see you. Meet me under the candelabra tree ASAP. The words would be jarring from anyone, but the sender is the only man she ever loved. And it's been several years since she learned he died. Seeing Drew’s name pop up is heart-stopping. Ariel’s gut says it can’t be real. But she goes to the tree anyway. She has to. Nobody shows.

Savannah Webster is trying to find her way forward. She and her husband, Hez, have been separated since tragedy tore them apart and he began numbing his grief and guilt with alcohol. She returned to Tupelo Grove University, which her family helped found over a century ago, to teach history. When Hez turns up in her classroom asking for a second chance, she rejects the idea immediately. But twenty-four hours later she’s under suspicion for murder, and since Hez is the best attorney she knows, she reluctantly asks him for help.

Perla Wultz lives with her husband, Grant, and their precious daughter, Sophie, in a gated Pasadena community. Affluent, sociable, and accomplished, Perla plays the part of loving wife and mother to perfection. It seems an ideal life, if not for a decades-old crime that has become Perla’s dark and consuming secret obsession. Twenty-three years ago, Leewood Folcrum confessed to murdering two young girls during a birthday party. Though he’s been condemned to a life sentence, his crime is not forgotten.

Julia White is struggling: her bartending job isn’t cutting it, and her first book has sold hardly any copies. She’s broke, barely able to make ends meet while drowning in her late mother’s medical bills and reeling after a one-night stand with her ex-boyfriend, who’s now completely ghosted her. Enter Johnathan Aster, world-renowned photographer, with a proposal: he has a never-before-seen photograph of a woman falling from a train bridge, clutching what appears to be a baby. And he wants Julia to research the story.

Camille Prescott has it all. A doting husband, two children, a charming home in a seaside enclave, and a beautiful, fixed smile that exudes normalcy. But behind her polished mask lurks a much different Camille—one with a padlocked vault of secrets. Raised by a vindictive and psychotic woman, Camille has gone to great lengths to bury her past and for good reason: if her mother ever finds her, she will kill her.