West Coast doctor Kenneth Stahl would do anything to free himself from his wife Carolyn. Then Adriana Vasco - Kenneth's former receptionist and mistress of nine years - obliged by introducing him to ex-con Dennis Earl Godley. The deal was set. Godley would murder Carolyn for thirty-thousand dollars. On the day after her 44th birthday, the trusting victim was lured to a lonely stretch of road. The deadly rendezvous took a shocking turn. Not only was Carolyn gunned down with a .357 Magnum, but Kenneth would also be killed.

Joyce Aparo seemed to be the perfect single mother. She doted on her sixteen-year-old daughter, Karin, encouraging her musical ability and lavishing affection on her. But behind closed doors, Joyce was a terror. For thirteen years, she beat Karin savagely and demeaned her relentlessly. When Karin met the troubled yet brilliant Dennis Coleman, the two fell head-over-heels. But Joyce disapproved—so she had to die.

As an exotic dancer at The Great Alaskan Bush Company in Anchorage, Mechele Hughes Linehan knew how to captivate men. Three of them were convinced she was engaged to them. Then one spring morning in 1996, one man, Kent Leppink, was found in the snow, shot in the head....Days before his death, Kent had removed Mechele's name from his million-dollar life insurance policy. He wrote a letter to his family stating that, should he meet foul play, Mechele would likely be among those involved. But she wasn't charged with Kent's death. She married a doctor, moved to Olympia, Washington, and began a new life.

He was a captain in the U.S. Air Force. She was a psychologist in Fayetteville, North Carolina. On the surface, Marty and Michelle Theer appeared to be the perfect married couple. But no one knew of the double life Michelle was leading. Tired of spending one too many nights apart from Marty who was often away on his flight missions, Michelle turned to the Internet to meet men and relieve her loneliness. With each encounter, Michelle became more daring in her sexual escapades. But one man stood out among all the rest: former U.S. Army Staff Sergeant John Diamond.

On a May evening in 1998, the idyllic marriage of wealthy Lake Tahoe couple Peter and Rinette Bergna ended in a crush of metal. Peter was thrown from the vehicle and lived. Rinette, strapped in her seat, died on impact. In time, the grieving widower would meet a new woman, and put the tragic past behind him. Two-and-a-half years later, his life took another fateful turn. Bergna, esteemed art appraiser and son of one of California's most prominent attorneys, was indicted for the murder of his wife. Was Rinette's death really an accident - or deliberate homicide?

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.

All Diane Bertalan really knew of her new husband, John, was that he was a widower, he lavished her with gifts, and he preferred to keep his past a secret. What she didn't know was that the FBI had been watching him for years. In the fall of 2000, she found out why - it was a crime that had been haunting authorities for decades. They called it the mystery of the Lady in the Box.

She was his second wife - to die. Coming off a failed marriage, a beautiful woman named Toni joined an online dating site hoping to find true and lasting love. Harold Henthorn seemed like her dream come true, a handsome man who said he had “[A] heart for others”. Only weeks after meeting, they were wed. But Toni's family began noticing Harold's dark side, especially his controlling nature, which Toni didn't seem to mind. Until she met her end at the bottom of a ravine. Was he a grieving husband - or a black widower?

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.

Praying for a happy ending, friends and family stood by Laci's grieving husband Scott. Four months later, Laci's decomposed body was found in the murky waters of San Francisco Bay. The body of her child had washed ashore about a mile away, after a possible "coffin birth." It was a sad closure to an exhaustive search, and a grim end to a marriage that by all accounts had appeared to be perfect.

On October 23, 1989, affluent businessman Charles Stuart made a frantic 911 call from his car to report that he and his seven-months-pregnant wife, Carol, a lawyer, had been robbed and shot by a Black male in the Mission Hill neighborhood of Boston. By the time police arrived, Carol was dead, and the baby was soon lost as well. The attack incited a furor during a time of heightened racial tension in the community. Even more appalling, while the injuries were real, Stuart’s story was a hoax: He was the true killer.

In 1911 two British heiresses, Claire and Dora Williamson, read a brochure about a revolutionary fasting treatment that promised a lifetime of good health. The sanatorium in the village of Olalla, west of Seattle, was surrounded by a beautiful forest, sparkling waters and fresh air. The sisters agreed it sounded perfect and exactly the restorative holiday they needed. But within a month of arriving, under the supervision of Doctor Linda Burfield Hazzard, Claire and Dora began to realise the frightening truth – they were not patients but prisoners at the isolated sanitorium.

Sheila Davalloo was young, attractive, and successful. When she started a new job at a cutting-edge research lab in Stamford, Connecticut, she met the man of her dreams. Nelson Sessler had no idea how violently Sheila would react when he began seeing a co-worker, Anna Lisa Raymundo. Sheila eliminated her rival in a bloody knife attack - and then turned her rage on another victim she saw as an obstacle to her passions.

"Big Bob" Bashara put on a respectable face. To his friends in Detroit's affluent suburb of Grosse Pointe, he was a married father of two, Rotary Club President, church usher, and soccer dad who organized charity events with his wife, Jane. To his "slaves", he was "Master Bob", a cocaine-snorting slumlord who operated a sex dungeon and had a submissive girlfriend to do his bidding - and he wanted more slaves to serve him. But Bashara knew he couldn't rule a household of concubines on his income alone. He eyed his wife's sizable retirement account and formulated a murderous plan.

In the lovely town of Pleasant Valley in upstate New York, the maple trees were ablaze with fall's blood-red color. The air was crisp. And a woman named Susan Fassett left her weekly choir practice at a church - when a killer emerged from the shadows and mercilessly gunned her down.

For twenty years, Ken and Kristine Fitzhugh and their two sons had lived lives of comfortable middle-class normality. Then came the shocking news that Kristine Fitzhugh was dead, the victim of a terrible accident.... By the time the Palo Alto Police Department looked closer at the death of Kristine Fitzhugh, there could be only one conclusion. Someone had murdered Kristine in her own home, inflicting a series of horrific blows to the back of her head, and then cleaned up the mess to make it look like an accident.

June 26, 2010. A Pennsylvania state trooper witnesses a car speeding and crashing into trees. Stopping to help, he finds that the driver, Michael Ballard, is alive - and drenched in blood. When asked what happened, the man answers, "I just killed everybody." Not far from the accident, police make a gruesome discovery. In the home of Michael's ex-girlfriend, Denise Mehri, they find four bodies that had been stabbed repeatedly with a knife.

He was a captain in the U.S. Air Force. She was a psychologist in Fayetteville, North Carolina. On the surface, Marty and Michelle Theer appeared to be the perfect married couple. But no one knew of the double life Michelle was leading. Tired of spending one too many nights apart from Marty who was often away on his flight missions, Michelle turned to the Internet to meet men and relieve her loneliness. With each encounter, Michelle became more daring in her sexual escapades. But one man stood out among all the rest: former U.S. Army Staff Sergeant John Diamond.

Roger and Penny Scaggs seemed a poster couple for family values. Evangelical Christians living in booming Austin, Texas, in the mid-1990s, they were respected leaders in their church and community. As Roger diligently worked his way up the high-tech corporate ladder, Penny kept a pristine home and coached similarly devout young women on how to be perfect wives. But on a windy March evening, this godly woman met the devil head-on.

Dr. John Yelenic was a successful dentist in a small Pennsylvania town. When he met Michele Kamler, he thought he'd finally found the woman of his dreams. She was beautiful, intelligent, and seemed to want all the same things out of life as he did. Michele married Yelenic in 1997. But by 2002, the relationship fell apart…and what followed was a bitter, three-year-long battle. Michele began dating Kevin Foley, a Pennsylvania State Trooper. When, in 2006, Yelenic was found murdered―slashed to death in his own home―Foley was the prime suspect.

Susan McFarland watched, powerless, as her husband, Rick McFarland, went into a downhill spiral of get-rich-quick schemes, quirky shopping trips, and prescription-drug abuse. Susan, a rising star at a major corporation, finally had enough. When she decided to call it quits, Rick ended her life, leaving three young boys - ages 5, 8, and 11 - without a mother. A two-month long search by law enforcement and volunteers found no trace of the missing woman....

As an exotic dancer at The Great Alaskan Bush Company in Anchorage, Mechele Hughes Linehan knew how to captivate men. Three of them were convinced she was engaged to them. Then one spring morning in 1996, one man, Kent Leppink, was found in the snow, shot in the head....Days before his death, Kent had removed Mechele's name from his million-dollar life insurance policy. He wrote a letter to his family stating that, should he meet foul play, Mechele would likely be among those involved. But she wasn't charged with Kent's death. She married a doctor, moved to Olympia, Washington, and began a new life.

Jocelyn Branham Earnest was found dead on the floor of her living room in Forest, Virginia. By her side was a gun and a suicide note-typed, lacking a signature, and with one fingerprint on it. A fingerprint apparently belonging to Jocelyn's estranged husband.Wesley Earnest was a respected high school administrator, poised to restart his life in a new community. Parents entrusted their children to his care and believed he was above reproach.

West Coast doctor Kenneth Stahl would do anything to free himself from his wife Carolyn. Then Adriana Vasco - Kenneth's former receptionist and mistress of nine years - obliged by introducing him to ex-con Dennis Earl Godley. The deal was set. Godley would murder Carolyn for thirty-thousand dollars. On the day after her 44th birthday, the trusting victim was lured to a lonely stretch of road. The deadly rendezvous took a shocking turn. Not only was Carolyn gunned down with a .357 Magnum, but Kenneth would also be killed.

On a May evening in 1998, the idyllic marriage of wealthy Lake Tahoe couple Peter and Rinette Bergna ended in a crush of metal. Peter was thrown from the vehicle and lived. Rinette, strapped in her seat, died on impact. In time, the grieving widower would meet a new woman, and put the tragic past behind him. Two-and-a-half years later, his life took another fateful turn. Bergna, esteemed art appraiser and son of one of California's most prominent attorneys, was indicted for the murder of his wife. Was Rinette's death really an accident - or deliberate homicide?

Widowed Blanche Taylor Moore was about to lose her second spouse to symptoms that mysteriously mirrored those that killed her first husband—as well as her previous boyfriend. When an investigation reveals arsenic poisoning, the hideous truth about the wife and mother comes to light. Did the abuse Blanche suffered as a child at the hands of her alcoholic father turn her into a murderer she became?

A typical morning in the Atlanta suburbs: Businessman Rusty Sneiderman drops his beloved son off at the Dunwoody Prep nursery. In the parking lot, a minivan pulls up next to his car. The driver pulls out a gun - and shoots Rusty four times in the chest. Sneiderman's devoted wife, Andrea, is devastated by the crime. Who could have done this? She is shocked when police trace the shooting to a man named Hemy Neuman - who happens to be Andrea's adoring boss.

On September 13, 2016, in the small town of Ashland, Ohio, emergency dispatchers received a 911 call from a terrified woman who claimed to be kidnapped. The man holding her hostage was Shawn Grate, a serial killer whom the press later dubbed “The Ladykiller.” A key to his conviction and death sentence were Grate’s extensive recorded confessions—all extracted by one woman: Detective Kim Mager.

Melissa Ramirez, Claudine Anne Luera, Guiselda Hernandez, and Janelle Ortiz were four marginalized women striving to make ends meet as sex workers. They looked out for one another. But they would soon share a connection that none of them could have imagined. When Melissa was found dead, the other three women were on edge but assumed they were safe. Twelve days later, they too were dead and police had detained an unlikely suspect—Juan David Ortiz, a ten-year veteran of the U.S. Customs and Border Protection.

When the body of 45-year-old Glen Harrelson was found in his Denver home, police tried to contact his wife, but soon they made a startling realization. She had played the part of grieving widow once before: Her previous husband also had died a mysterious accidental death...