Days before Thanksgiving, a small Philly suburb is rocked by the murder of 67-year-old Alice Hufnagle. Investigators run down a litany of suspicious characters on the road to unmasking the beloved matriarch's killer.

In 2005, a 28-year-old photographer and college student is found murdered in his Arlington, Texas apartment. Investigators suspect that the victim's generosity and willingness to help those in need may have lead a killer to his door.

In December 1998, the body of telemarketing manager David Stevens is found in a torched car in La Jolla, California, the victim of homicide. Detectives encounter a rogue's gallery of suspects and outlandish leads on their way to finding the killer.

A young woman is found murdered in her Portland, OR apartment on Christmas Day and investigators soon learn the terrifying truth about her vicious killer.

Not all serial killers are the same. Some kill for pleasure, others for reward. Cult killer Robert Rozier stalks Miami. He and his associates murder and mutilate on their master's orders. But one fateful mistake will bring Rozier to justice.

Barbara Mackle, a promising co-ed and real estate heiress, is kidnapped and buried alive in a coffin-like "capsule." From Washington D.C. to Miami, local police and the FBI race to find the culprit before Barbara's time underground runs out.

Montgomery, Alabama’s upper crust social circle is about to play host to an uninvited party guest. Murder is on the menu when one family’s distrust and finger pointing lead detectives on a cross-country trek for a killer.

On Thanksgiving, police officers are sent out on a welfare check and uncover an unthinkable triple homicide. To unmask the killer, detectives must uncover a victim's secrets and examine a hidden world of disinheritance, rage, and dark accusations

A frantic 9-1-1 caller informs police he's found a family member dead. At first, it looks like a simple case of suicide. But a deeper dig reveals a secret world of sex tapes, broken promises and unbelievable murder motives.

Twenty-three year-old Brandi Wells is a spirited young woman about to get a second chance in pursuing her lifelong goal. But, her dreams are cut short when police find her abandoned vehicle the morning after she goes out alone to a nightclub.

A locally adored and respected mother of three living in Colorado vanishes. Her community is shocked to learn she has been working as an adult escort. With a violent previous marriage, and another marriage before that, no one knows whom to blame.

25-year-old Amy St. Laurent vanishes one night while out on a date with an out of town friend. Suspicion soon falls on a suspected sexual predator, but detectives need to work around the clock to find a way to connect him to the grisly crime.

Michele Whitaker is vivacious, attractive, and out of control. Drinking heavily and fighting with her mother, she hitches a ride to a truck stop and disappears. Most think she is dead, but her family never gives up.

Lee Cutler is the universally loved high school senior who disappears after dropping off his best friend on a cool autumn morning. The search involves police officers across two states, underwater divers, and a nationwide watch.

Maura Murray goes missing after her car swerves off a dark and windy road over 140 miles away from her dorm. As the years pass, her family and friends refuse to give up their search to discover what happened to her that fateful February night.