On May 31, 2014, in the Milwaukee suburb of Waukesha, Wisconsin, two 12-year-old girls attempted to stab their classmate to death. Morgan Geyser and Anissa Weier’s violence was extreme, but what seemed even more frightening was that they committed their crime under the influence of a figure born by the internet: the so-called “Slenderman”. Yet the even more urgent aspect of the story, that the children involved suffered from undiagnosed mental illnesses, often went overlooked in coverage of the case.

In and out of hospitals since birth, angelic nine-month-old Morgan Reid finally succumbed to what appeared to be sudden infant death syndrome. Morgan's Texas-born mother, Tanya, a nurse and devoted wife, pulled up stakes with her grieving husband, Jim, and moved on. It was the best way to put the past behind them. Until their son, Michael, a boy who by all accounts was terrified of his mother, began showing signs of the same affliction that stole the life of his baby sister....

Colorado, 1976. When Reverend Mike Fuller and his beautiful wife, Sharon, arrive in the sleepy town of Rocky Ford, local residents think something’s off about the new couple. The God-fearing minister is gruff and cold, while charismatic Sharon has her husband wrapped around her finger.

On the morning of July 18, 2014, 41-year-old Florida State law professor Dan Markel dropped his boys off at preschool, hit the gym, and headed home to his quiet, tree-canopied neighborhood. Within seconds of pulling into his garage, two .38-caliber bullets fired from point-blank range were lodged in his brain. His brutal slaying defied explanation.

On any Sunday morning in the Florida Redlands, Dee Casteel might have served you pancakes at the IHOP. She was a hard-working, cheerful waitress, one of the nicest people you'd ever want to know. She was also a three-bottle-a-day alcoholic, hopelessly in love with the IHOP's manager, Allen Bryant. Bryant wanted his live-in lover, IHOP owner Art Venecia, dead. And Dee Casteel helped him to arrange it.

David loved Cindy and was loved in return. Or so he thought. The troubled young man clung to his new love and dreamed of their future together. So begins the chain of events that was to evolve into a horror of terrifying proportions. Jack Olsen, best-selling author of Son, now reveals the details of a true-life romance gone hideously awry.

In May 1971, Pam Jackson and Sherri Miller were two seventeen-year-olds driving to an end-of-the-school-year party in a rundown Studebaker Lark, when they seemingly disappeared off the face of the earth. Police back then didn't do enough to try and find them. Investigators thirty years later did too much. Two families endure decades of pain as they await answers of what happened to their girls. When a third family is pulled into the mystery, they quickly learn their nightmare is just beginning.

To his parishioners, minister Matt Baker seemed a pious and good man. To his wife, Kari, he was a devoted husband and caring father. Always sunny and vivacious, Kari never questioned their frequent relocations from one small Texas Baptist church to another. Even when tragedy struck, Kari remained strong - until one day, inexplicably, she took her own life.

When police in Rexburg, Idaho perform a wellness check on seven-year-old J.J. Vallow and his sister, sixteen-year-old Tylee Ryan, both children are nowhere to be found. Their mother, Lori Vallow, gives a phony explanation, and when officers return the following day with a search warrant, she, too, is gone. As the police begin to close in, a larger web of mystery, murder, fanaticism and deceit begins to unravel. Vallow’s case is sinuously complex. As investigators prod further, they find the accused Black Widow has an unusual number of bodies piling up around her.

On February 13, 2017, two Indiana teenagers, Abigail Williams, 13, and Liberty German, 14, went for a walk in the woods near the abandoned Monon High Bridge. They never returned home.

On March 26, 2018, rescue workers discovered a crumpled SUV and the bodies of two women and several children at the bottom of a cliff beside the Pacific Coast Highway. Investigators soon concluded that the crash was a murder-suicide, but there was more to the story: Jennifer and Sarah Hart, it turned out, were a white married couple who had adopted the six Black children from two different Texas families in 2006 and 2008. Behind the family's loving facade, however, was a pattern of abuse and neglect that went ignored.

In May 1996, two skilled backcountry leaders, Lollie Winans and Julie Williams, entered Virginia’s Shenandoah National Park for a week-long backcountry camping trip. The free-spirited and remarkable young couple had met and fallen in love the previous summer while working at a world-renowned outdoor program for women. During their final days in the park, they descended the narrow remnants of a trail and pitched their tent in a hidden spot. After the pair didn’t return home as planned, park rangers found a scene of horror at their campsite.

In the tradition of The Glass Castle, Educated, and Heartland, Neal Wooten traces five decades of his dirt-poor, Alabama mountain family as the years and secrets coalesce.

Loni Ann, Cynthia, Lauren, Cheryl, and Sara seemed to have it all - beauty, wealth, children, and a husband who they believed to be this perfect man - Brad Cunningham. He was handsome, charismatic, and mysterious. They adored him and tried to give him all he wanted. But he wanted everything: sex, money, and it seemed, their very lives. How long would it take before he finally got what he deserved?

In November 1987, a young couple on an overnight trip to Seattle vanished without a trace. A week later, the bodies of Tanya Van Cuylenborg and her boyfriend Jay Cook were found in rural Washington. It was a brutal crime, and it was the perfect crime: With few clues and no witnesses, an international manhunt turned up empty, and the sensational case that shocked the Pacific Northwest gradually slipped from the headlines.