Bright, attractive, and both from good families, University of Texas college student Colton Pitonyak and vibrant redhead Jennifer Cave had the world at their beckoning. Cave, an ex-cheerleader, had just landed an exciting new job, while a big-money scholarship to UT's prestigious business school lured Pitonyak to Austin. Yet the former altar boy had a dark, unpredictable streak. When Jennifer failed to show up for work on August 18, 2005, her mother became frightened. Sharon Cave's search led to Colton's West Campus apartment, where Jennifer's family discovered a scene worthy of the grisliest horror movie.

The officer responding to a 911 call at one of Houston's hippest high-rises expected the worst. After all, domestic violence situations can be unpredictable. But nothing could've prepared him for what he found: a beautiful woman drenched in blood, an older man lying dead on the floor, and a cobalt blue suede stiletto with tufts of white hair stuck to its five-and-a-half-inch heel.

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.

Over a three-decade span, more than 20 women - many teenagers - died mysteriously in the small towns bordering Interstate 45, a 50-mile stretch of highway running from Houston to Galveston. The victims were strangled, shot, or savagely beaten.

On a cold January morning, the killer executed Assistant District Attorney Mark Hasse in broad daylight. Eight shots fired a block from the Kaufman County Courthouse. Two months later, a massacre. The day before Easter, the couple slept. Bunnies, eggs, a flower centerpiece gracing the table. Death rang their doorbell and filled the air with the rat-a-tat-tat of an assault weapon discharging round after round into their bodies. Eric Williams and his wife, Kim, celebrated the murders with grilled steaks. Williams planned to exact revenge on all those who had wronged him.

At first, Linda Bergstrom's marriage to her husband James was idyllic. They were young and in love; he was about to enter the Navy and she was eager to start a family. But it wasn't long before the dream exploded. James became abusive and violent, prone to sudden bursts of anger, long silences, and unexplained disappearances. But Linda vowed to hold on, despite the pain and fear...and her disturbing suspicions about her husband's secret life.

Trophy wife Celeste Beard wasn't satisfied with a luxurious lifestyle and her rich Austin media mogul husband's devotion--so she took his life! The wife: She wanted everything, but her husband stood in the way. The lesbian lover: a lovestruck, middle-aged woman with a history of mental illness. She would do anything to set Celeste free. The beauty salon receptionist: Celeste hired her to tie up the loose ends...in a second conspiracy to commit murder.

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.

In Creekstone, Texas, a small, quiet suburb of Houston, football was king and David Temple was a prince. A former high school and college gridiron-star-turned-coach, he had a fairy-tale marriage to bright, vivacious Belinda Lucas, a teacher at the local high school who was so warm and popular her colleagues called her "The Sunshine Girl". The fairy tale ended savagely on January 11, 1999, when Belinda's lifeless body was discovered in a closet. Her skull had been shattered by a shotgun blast at close range. She was eight months pregnant.

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.

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 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.

Although happily ensconced in a loving second marriage and a new family of quadruplets, Sheila Blackthorne Bellush never truly escaped the enslavement of her ex-husband, multimillionaire Allen Blackthorne, a handsome charmer - and a violent, controlling sociopath who terrorized her for a decade after their divorce. When Sheila was slain in her home, in the presence of her four toddlers, authorities raced to link the crime to Blackthorne, the man who vowed to monitor Sheila's every move in his obsessive quest for power and revenge.

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.

Two days after Christmas, 2011, Russel Faria returned to his Troy, Missouri, home to find his wife, Betsy, dead, a knife still lodged in her neck. She had been stabbed 55 times in a brutal murder that would set off a chain of events leading to one man's wrongful conviction and imprisonment, another man's death, the revelation of a diabolical scheme, and an astounding miscarriage of justice left unresolved for another 10 years.

The day before Halloween 2004 was the last day on Earth for respected, well-liked college professor Fred Jablin. That morning, a neighbor discovered his body lying in a pool of blood in the driveway of Jablin's Virginia home. Police immediately turned their attentions to the victim's ex-wife, Piper, a petite, pretty Texas lawyer who had lost a bitter custody battle and would do anything to get her kids back. But Piper was in Houston, 1,000 miles away, at the time of the slaying and couldn't possibly have been the killer...could she?

The officer responding to a 911 call at one of Houston's hippest high-rises expected the worst. After all, domestic violence situations can be unpredictable. But nothing could've prepared him for what he found: a beautiful woman drenched in blood, an older man lying dead on the floor, and a cobalt blue suede stiletto with tufts of white hair stuck to its five-and-a-half-inch heel.

Trophy wife Celeste Beard wasn't satisfied with a luxurious lifestyle and her rich Austin media mogul husband's devotion--so she took his life! The wife: She wanted everything, but her husband stood in the way. The lesbian lover: a lovestruck, middle-aged woman with a history of mental illness. She would do anything to set Celeste free. The beauty salon receptionist: Celeste hired her to tie up the loose ends...in a second conspiracy to commit murder.

In Creekstone, Texas, a small, quiet suburb of Houston, football was king and David Temple was a prince. A former high school and college gridiron-star-turned-coach, he had a fairy-tale marriage to bright, vivacious Belinda Lucas, a teacher at the local high school who was so warm and popular her colleagues called her "The Sunshine Girl". The fairy tale ended savagely on January 11, 1999, when Belinda's lifeless body was discovered in a closet. Her skull had been shattered by a shotgun blast at close range. She was eight months pregnant.

Bright, attractive, and both from good families, University of Texas college student Colton Pitonyak and vibrant redhead Jennifer Cave had the world at their beckoning. Cave, an ex-cheerleader, had just landed an exciting new job, while a big-money scholarship to UT's prestigious business school lured Pitonyak to Austin. Yet the former altar boy had a dark, unpredictable streak. When Jennifer failed to show up for work on August 18, 2005, her mother became frightened. Sharon Cave's search led to Colton's West Campus apartment, where Jennifer's family discovered a scene worthy of the grisliest horror movie.