In the sleepy rural town of Painters Mill, Ohio, the Amish and "English" residents have lived side by side for two centuries. But 16 years ago, a series of brutal murders shattered the peaceful farming community. Kate Burkholder, a young Amish girl, survived the terror of the Slaughterhouse Killer but came away from its brutality with the realization that she no longer belonged with the Amish. Now, a wealth of experience later, Kate has been asked to return to Painters Mill as Chief of Police. She's certain she's come to terms with her past - until the first body is discovered in a snowy field.

When a family dog brings home a human bone, Chief of Police Kate Burkholder finds herself on a desperate search for answers. Where did the bone come from? Who does it belong to? And perhaps most importantly, are the bones a result of foul play? With Halloween approaching, the unsettling questions garner uneasiness, rumors, and macabre theories among the residents of Painters Mill.

As a violent thunderstorm rages in Painters Mill, Kate Burkholder receives a call from a frantic young Amish woman: Her two-year-old son is missing. Kate and her officers brave the downpour to search for the toddler, fearing he may have been swept away in the rising creek waters. But an explosive family secret leads Kate to believe this disappearance may be more complicated than anyone is letting on. Can she find the boy and uncover the truth before darkness falls?

Thirty-year-old Barbara Weaver was content to live as the Amish have for centuries - without modern convenience - but her husband, Eli, wanted a life beyond horses and buggies. Soon he gave in to the temptation of technology and found ways to go Online and meet women. When Barbara was found dead, shot in the chest at close range, all eyes were on Eli... and his mistress, a conservative Mennonite named Barb Raber. Barb drove Eli to appointments in her car. She gave him everything he asked for: a laptop, rides to his favorite fishing and hunting spots, and sex.

Cases of random violence have erupted across the country - murderous acts committed by previously non-violent people. Detective Adam Boedecker, grieving brother to one of the suicide-murderers, has discovered that all the suspects had taken a new breakthrough anti-depressant, Valazine. Elizabeth Barnes has devoted her heart and soul to pharmaceutical research. She's at the top of her game and slated to be awarded top honors for her latest breakthrough drug. Until a detective contacts her about a recent wave of homicides.

Detective Olivia Mast would rather run through gunfire than return to her former Amish community in Unity, Maine, where she killed her abusive husband in self-defense and witnessed her family's murder. After an Amish man is murdered, the community will not answer questions from the police, so she begrudgingly dons her old prayer kapp and heads to Unity to investigate the murder undercover. To make things even worse, her captain also orders her to protect the man she dated as a teen: Isaac Troyer, who was attacked on the night of the murder but can't remember the incident.

Blake Wilder is plagued with nightmares from her dark and twisted past. Fourteen years ago, her entire family was taken from her. Her parents murdered and her sister taken. At the age of 22, Blake joined the FBI in hopes of one day discovering the truth behind the mysteries of her own past.

In the remote forests of Stillwater, Minnesota, you can scream for days and no one will hear you. So when the bodies of two 15-year-old girls are discovered frozen in the snow, Special Agent Nikki Hunt is sure the killer is local: Someone knew where to hide the girls and thought they would never be found. Though Nikki hasn’t been home in 20 years, she knows she must take over the case.

Did a sweet-faced Amish teenager brutally murder a young woman? To save her career, big-city lawyer Jessica Langdon is determined to defend him against the community's bitter and even violent outrage. Yet without an understanding of Amish culture, Jessica must rely on arrogant businessman Trey Morgan, who has ties to the Amish community and believes in the boy's guilt.

When Kate Fox receives a late-night phone call, her seemingly perfect life on the Nebraska prairie shatters in an instant. Eldon, shirt-tail relative and owner of one of the largest cattle ranches in Grand County, has been killed. Kate's husband, Ted, the Grand County sheriff, has been shot and may never walk again. And worst of all, Ted is the prime suspect in Eldon’s murder. Desperate to clear Ted's name, Kate throws herself headlong into the hunt for the real killer. When she finds herself the victim of several mysterious “accidents”, she knows she’s running out of time.

As dusk approaches a small Dublin suburb in the summer of 1984, mothers begin to call their children home. But on this warm evening, three children do not return from the dark and silent woods. When the police arrive, they find only one of the children gripping a tree trunk in terror, wearing blood-filled sneakers, and unable to recall a single detail of the previous hours. Twenty years later, the found boy, Rob Ryan, is a detective on the Dublin Murder Squad and keeps his past a secret.

Chief Inspector Armand Gamache of the Surêté du Québec and his team of investigators are called in to the scene of a suspicious death in a rural village south of Montreal. Jane Neal, a local fixture in the tiny hamlet of Three Pines, just north of the U.S. border, has been found dead in the woods. The locals are certain it’s a tragic hunting accident and nothing more, but Gamache smells something foul in these remote woods, and is soon certain that Jane Neal died at the hands of someone much more sinister than a careless bowhunter.

An eight-year-old girl, Chelsea Compton, is missing in Pine Valley, California, and for Detective Katie Scott it’s a cruel reminder of the friend who disappeared from summer camp 20 years ago. Unable to shake the memories, Katie vows she won’t rest until she discovers what happened to Chelsea. But as Katie starts to investigate, the case reveals itself to be much bigger and more shocking than she feared. Hidden deep in the forest she unearths a makeshift cemetery: a row of graves, each with a brightly colored teddy bear.

Gina Royal is the definition of average—a shy Midwestern housewife with a happy marriage and two adorable children. But when a car accident reveals her husband’s secret life as a serial killer, she must remake herself as Gwen Proctor—the ultimate warrior mom. With her ex now in prison, Gwen has finally found refuge in a new home on remote Stillhouse Lake.

Dr. Emory Charbonneau, a pediatrician and marathon runner, disappears on a mountain road in North Carolina. By the time her husband Jeff, miffed over a recent argument, reports her missing, the trail has grown cold. Literally. Fog and ice encapsulate the mountainous wilderness and paralyze the search for her. While police suspect Jeff of "instant divorce," Emory, suffering from an unexplained head injury, regains consciousness and finds herself the captive of a man whose violent past is so dark that he won't even tell her his name.