One summer night in 2007, the Petit family is woken up by two strangers in their quiet Connecticut home; suddenly, these four family members find themselves being held hostage and in a fight for their lives.

On June 6, 1992, Suzie Streeter and Stacy McCall attend parties celebrating their high school graduation; by morning, the teenagers have gone missing, along with Suzie's mother, Sherrill Levitt; the case leads police on a nationwide search.

Over the span of decades, three women meet their deaths or go missing under mysterious circumstances, forcing authorities to examine the one thing they had in common -- they all fell in love with the same man.

A celebratory night turns deadly for the Whitaker family as they are gunned down at home; when investigators uncover a conspiracy, it will test one man's ability to forgive as he fights to save the criminal mastermind from the death penalty.

In the summer of 1980, a popular teen goes for a run around her hometown in Maine and, days later, her savagely beaten body is found; what happened remains a mystery for years until her mother intervenes and forces police to re-examine the case.

NBA basketball player Lorenzen Wright goes missing outside of Memphis, Tenn., then his body is discovered in the woods, and investigators find out this case is far from a slam dunk.

In Florida, friends and family are stunned after an esteemed criminal law professor is executed in his garage; investigators follow a series of leads taking them on a statewide hunt in search of the murderous masterminds.

A 12-year-old girl goes missing on her way to school in Oregon City, Ore.; the police investigation offers little in the way of leads, then a second girl disappears.

In San Francisco, Kevin Collins, 10, disappears on his way home, galvanizing the residents to find him; with few leads to go on, Kevin's case sheds light on hundreds of other children who have vanished without a trace in the United States.

In the early 1970s, Washington D.C. is terrorized by a cunning killer who abducts and murders six young African American girls; police and the community are outraged by the serial killings that target young children in their own neighborhoods.

Cambodian genocide survivor Dr. Haing Ngor wins an Oscar for his role in "The Killing Fields," then he's gunned down outside his Los Angeles home, and the LAPD investigates a web of political intrigue, revenge and street gangs to uncover the truth.

In York, Pa., race riots claim the lives of an African-American mother and a young, white police officer; their deaths are largely forgotten until 30 years later when their cold cases are reopened, revealing the city's dark past.

A brutal 1970 home invasion claims the lives of Army surgeon Jeffrey MacDonald's wife and daughters, leaving him the lone survivor; authorities doubt his story of murderous hippies and believe MacDonald committed the crime himself.

In 1988, a young woman is found murdered in her Modesto, Calif., home, leading police to investigate the strife and infidelity in her marriage; a surprising witness eventually comes forward.

A double murder involving the family of a federal judge prompts an investigation of epic proportions by the FBI, U.S. Marshals and Chicago Police Department; at the end of the trail, law enforcement personnel learn the death count may climb higher.

When a young family vanishes from their Southern California dream home, friends and family are left with dozens of unanswered questions; authorities suspect they fled the country, until an unlikely source uncovers the truth.

Shock sweeps through a Washington community when a suburban mother gets arrested for a murder from a decade earlier in Alaska; details of a seedy and sordid past emerge.

In 1998, a gifted Philadelphia graduate student is found murdered in her bed, triggering a hunt for her killer.

A young couple's toddler vanishes while the family is enjoying an impromptu camping trip in Leadore, Idaho; investigators and private detectives work around the clock to find the missing boy, only to come back to his parents.

In Craig, Ala., townspeople are shocked when police discover the charred body of beloved mother and wife Lauri Waterman; people have no idea who would want to kill her, then an unlikely witness reveals a sordid story of secrets and lies.

In 1992, a 19-year-old woman is brutally assaulted outside of Desert Hot Springs, Calif.; miraculously, she escapes but lives in constant fear that her assailant will find her again one day, not realizing she has survived a serial killer.

"Betrayed" reveals chilling stories of chasing the American dream and how the veneer can dramatically crumble, ending in murder at the hands of a trusted family member, co-worker, lover, or friend. The cases of deception are told through the lens of the fictionalized, first-person perspectives of the victims. As investigators, family, and friends peel back the layers and facts of each case, the otherworldly narrator already knows where the trail ends. The narrator guides viewers through various relationships, raising suspicions about who will commit the ultimate betrayal.

From the moment a homicide is reported, a file is assembled to document every facet of the investigation -- crime scene photos, notes and observations, forensic reports, witness interviews, suspect profiles -- and continues to grow with new information until an arrest is made and conviction attained. Investigation Discovery opens these "murder books" to tell haunting tales buried within the pages. Hourlong episodes take viewers back in time with details of decades-old cold cases using actual archival footage, crime-scene evidence and first-person interviews with lead investigators, unraveling the mystery and uncovering what broke the cases open.

Investigation Discovery joins forces with reporters from People magazine to tell stories of high-end fashion icons and their couture crimes that captured headlines. The adage"if looks could kill" takes on entirely unique meaning in the series, which grants People's journalists exclusive access beyond the catwalk to reveal that fashion can sometimes be fatal. The hourlong tales of depravity, obsession, and family betrayal in the fashion world all have a common thread -- cold-blooded murder.

A version of the award-winning CBS true-crime series delves into investigations of murder, gambling, missing persons and other incidents, with "48 Hours" correspondent Maureen Maher introducing reports.

Veteran journalist María Elena Salinas has made a name for herself in the Spanish-speaking community as a longtime news anchor on Univision. In this series, she goes from reporting the news to investigating it as she goes beyond the headlines to uncover the truth about headline-making crimes. Salinas attempts to remove the clutter that surrounds cases that were in the media spotlight and find information that the media originally missed when reporting on the stories as they were happening. In her searches, Salinas finds new evidence, gets previously unheard perspectives and provides updates to the cases.

Anchored by Lester Holt, "Dateline" is NBC's signature newsmagazine, bringing viewers storytelling at its best by putting the pieces together to present the full picture of real-life events. NBC News correspondents cover compelling stories and issues of the day, ranging from mystery and crime to in-depth investigations and breaking-news events.

"Dateline" has been a staple of the newsmagazine genre since premiering in 1992. Given how long it's been on the air, the show has an extensive archive of in-depth news stories and investigative journalism. This syndicated version offers viewers another chance to watch some of the show's previous content, serving up real-life mysteries and in-depth investigations from the show's 20-plus years on the air. Cases involving murders and missing people are frequent topics on the series that has won multiple Emmys in the news and documentary category.

"Accident, Suicide, or Murder" investigates the deaths that are considered just a little bit too mysterious. This hourlong series takes viewers along on an exploration of unbelievable true stories. Each episode retraces the original investigations from the start to the finish. Investigators lead viewers through all of the twists, turns and surprises that crop up as they dissect the red flags, show evidence, and point out the strange behavior that puts everything into question.

Journalist Tamron Hall leads a team of correspondents in this newsmagazine series. Each hourlong episode presents two complex and compelling crime cases, and Hall and the investigative team dig beyond the headlines to explore not only what happened in each case but also why it happened. Interviewees including detectives, prosecutors and psychological profilers -- as well as criminals and their victims -- reveal what caused people to turn to crime, then whether justice was served finally. Emmy-winning journalists Michelle Sigona and Angeline Hartmann, "America's Most Wanted" correspondent Tom Morris Jr., best-selling author Aphrodite Jones, and filmmaker Keith Beauchamp are also featured in the series.