Trusted family members, co-workers, lovers, and friends commit acts of betrayal ending in murder.

Janet Walsh is a young divorcée celebrating her freedom at the local disco, then she is found murdered the next morning, and it will take an officer 35 years to bring her killer to justice.

Debbie Ashley is a pharmaceutical rep who hopes her third marriage to a respected hospital executive will be forever, but when her body turns up in the trunk of her car, a stunning confession bares dark secrets in Debbie's seemingly idyllic life.

When 34-year-old mother Tara Lynn Grant goes missing, police can find no trace of her until a gruesome discovery turns the case into a statewide manhunt.

Seventeen-year-old Kelly Bullwinkle is desperate to find her place among the students at her Southern California high school; when a secret affair with her friend's boyfriend goes wrong, Kelly is given one final lesson in death.

Cathy Stroup, a no-nonsense Irish mother, knows what her family needs to survive.

Twenty-five-year-old Corey Parker moves to Jacksonville Beach, Fla., looking for fun in the sun; however, someone in her new circle of friends harbors a murderous intent that claims her life.

Joan Bent enjoys a loving marriage and manages the cleaning staff at a local hotel, then she is found murdered in the trunk of her car.

Fifteen-year-old Becky Stowe is eager to find love, then she disappears without a trace, prompting friends and family to wonder if she found what she was looking for, or if trouble found her instead.

In 1984, college student Angela Samota gets noticed by the wrong person leading to the ultimate betrayal.

After four marriages, 36-year-old Carol Grannon returns to school and lands a lucrative job; sadly, one of the men in her life will end it just as she begins this new chapter.

Yelena Zakin's life is turned upside down by her husband's interest in his new secretary, then she goes missing.

Susan Smith becomes an FBI informant to protect her children from her husband's criminal friends, but her desire to do the right thing brings hellish consequences.

Twenty-year-old Missy Grubaugh, a devout Christian, is saving herself for marriage, but her innocent charms attract the wrong type of men with deadly results.

Retired corrections officer Ray Kotomski believes he has put peril behind him, then he faces danger in the form of his second wife, her hostile brother, jealous ex-husband and deranged stalker.

After Marilyn Reza is found murdered in her home, investigators turn their attention to the members of her church; however, a secret confession at her funeral brings the true murderer to light.

Thirty-four-year-old Paige Birgfeld juggles four jobs, three children and two ex-husbands, but no one realizes she is also hiding a deep, dark secret that will eventually lead to a betrayal.

After two divorces, Kathy Goble makes herself a priority for the first time in her life; however, her carefree ways soon catch up to her, and she is betrayed in the most brutal way possible.

Single mother Dana Laskowski juggles a boyfriend, a jealous ex-husband and a secret lover, then her life is cut short by someone close.

Motorcycle-riding Diane Snellen is a single mother trying to make her way in the world while navigating the dating scene in Georgetown, Ky., then her life comes to an abrupt end when she's stabbed in her own home.

Rhonda Smith is a single woman who relies on the kindness of strangers at her new church, then one of them betrays her.

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.

The stars of "Suspicion" walk a fine line between certainty and skepticism when confronted with mysterious situations. Instead of trusting others, the subjects lean on their instincts and ultimately take matters into their own hands. Featuring emotional first-person interviews detailing endless twists and turns that come with following dangerous hunches, the series tells actual stories of folks who suspect imminent danger and become fixated on finding the truth. Tales build suspense from the moment something feels amiss.

Powerfully emotional stories tell of people who have been targets of compulsive stalkers. According to the Centers for Disease Control and Prevention, more than 6 million people in the U.S. are stalked each year, and in most instances, the stalker is someone the victim already knows. The series' hourlong episodes dramatize actual cases through visceral re-enactments and pointed testimony of victims, family members and law enforcement authorities, revealing what happens when stalkers can't have what -- or who -- they want, and stop at nothing to ensure that no one else can either. The chilling accounts probe the mechanics of an obsessive mind and the devastating impact of delusion.

Stylized re-enactments tell stories of actual crimes that have a similar moral: choosing to trust someone can be a life or death decision. One moment, the world seems so safe; the next, it becomes completely unrecognizable, all because someone betrays the trust of a family or social circle, leading to paranoia and suspicion and ultimately a cold-blooded murder. The husband, the best friend, the business partner, the stockbroker, the neighbor and the mistress are left looking over their shoulder, living in fear of the killer, or the truth, or being caught in a lie. As the investigation unfolds and secrets are laid bare, it produces a horrific realization: the victim was killed by someone they trusted.

Investigation Discovery digs deep into the psychological forces that drive a person to commit homicide. What compels him or her to decide that taking a life is something that must be done? Perhaps the offender has been struggling with lifelong issues. Or maybe it's an inability to cope with pressures of adulthood. Whatever the case, the perpetrator's tortuous journey stunningly ends in violence. Episodes include interviews that offer insight into the troubling relationships between offenders and victims. Law enforcement personnel and psychiatrists also provide context. And, of course, ID's typical re-creations bring to life complex backstories, the homicide scenes and the aftermaths of senseless crimes.

Raw, unbridled and chilling depictions of human desires surface in "In Ice Cold Blood." True crime is depicted at another level as Ice-T takes viewers straight into the stories. Money, sex, lust, and greed run rampant with very real consequences. Family members, friends and detectives recount each case -- a missing military veteran, a student murdered in a crime of passion, and secret payouts are only some of the cases. These stories are told through re-enactments, in-depth interviews and archived footage.

Each episode of this true-crime reality series examines a different felon, usually a female, who has committed murder or attempted murder. The victim is usually the perpetrator's partner. The documentary-style series features interviews with friends and family members of the accused and victims, law-enforcement officials, attorneys and other people with first-hand knowledge of the cases.

What lurks in the shadows during graveyard shifts comes to light in this series, a quintessential Investigation Discovery offering that features nail-biting re-enactments of actual crimes in which darkness hides predators hungry for a midnight snack. Told through interviews with victims' family members and law enforcement, each story begins after a brutal crime is committed in the quiet of the night, and community members are left wondering who might be next. Investigators get to work, knowing that each time the sun sets, the body count might rise.

The three-part series, hosted by former federal prosecutor Laura Coates, re-examines the infamous murder of Martha Moxley by testing new theories and digging into potentially overlooked clues with help from some of the world's preeminent crime authorities. Coates attempts to understand the question that remains: Why has justice been so elusive for the Moxley family after so many years? The series features new and exclusive interviews with those connected to the case, including former LAPD homicide Detective Mark Fuhrman, trial defense attorney Mickey Sherman and Robert F. Kennedy Jr., as well as conversations with Martha's loved ones.

The holiday season between Thanksgiving and New Year's is often thought of as a celebratory period to spend time with friends and family. That is not always the case, though, as the period is not immune from experiencing the same types of violent crimes that occur throughout the year. This series documents stories of tragedy that struck during the holidays, with firsthand accounts from people who had friends or family members killed during the joyous time. Sometimes the victim is killed by someone close to them, such as a case of sibling rivalry turned deadly, but sometimes the killing is done by a stranger who interrupts a holiday gathering with gunfire.