Alice Hufnagle is raped and murdered on Nov. 22, 2002; after following numerous leads and dead ends, police find the vital clues that lead them to Jeffery Vample, Alice's co-worker at a local pharmacy.

When Andrea Farrington meets fellow employee Alex Kozak, she feels that romance could be on the horizon, then Farrington's hopeful feelings are replaced by suspicion and fear, leading to a final rejection that has fatal consequences.

Alisha Bromfield's supervisor, Brian Cooper, promotes her to team leader, but his motives are not entirely pure; Bromfield stands her ground, letting Cooper know she doesn't want a relationship beyond a professional one.

Sandra Berfield suffers years of harassment from coworker Steven Caruso and has him jailed for violating a restraining order; released, Caruso sends a pipe bomb to Berfield who is killed instantly after picking up a package left on her front porch.

On a June morning, a cleaning lady finds property manager Melinda Schaefer stabbed to death in her ransacked office.

Bob Peterson invites himself over to his co-workers Gene and Jaye-Jaye Thurnau's new home to give them a housewarming present; later, Jaye-Jaye leaves the guys alone to run an errand, during which time they vanish.

Caroline Nosal, a 24-year-old grocery store worker, befriends co-worker Christopher O'Kroley, but she soon complains to store management about O'Kroley's behavior leading to a tragic outcome.

Kerri Harris and her friend discover a camera secreted in the restroom at work; while police examine the evidence, Harris is stabbed to death in her office with her co-workers just a few feet away.

Afer Leesa Nascimento is shot dead, a recently fired coworker, Lorenza Sam, is tied to her murder and arrested.

Theresa Wesolowski, 22, is murdered on May 29, 1999; police are baffled for nearly 10 years before finally getting a break when a new DNA technique identifies Wesolowski's coworker, Mark Libecki, as her killer.

In Tacoma, Wash., businessman Robert Henry is murdered by a masked gunman, and his wife, Paula, points the finger at Henry's former business associate, Larry Shandola.

After Gayle Isleib is shot to death on April 30, 1996, police identify her coworker, Tyronne Montgomery, as her killer; they find love poems as well as evidence that Montgomery planned to kidnap Isleib and murder her husband.

Stories of unexpected crimes between seemingly peaceful neighbors that take viewers through the twists and turns of the investigation, the arrest, and the quest for justice.

Love is not patient, nor is it kind, and it definitely does not conquer all. As described in this six-part series, everything people thought they knew about love is wrong. Episodes detail casualties of love, including former partners, jealous friends, scorned sons and daughters, and devoted family members. The stories of love triangles, hidden affairs and family secrets, depicted via stylized re-enactments, show the transfixing power of emotion and how it can beckon the most reasonable people into criminal madness. Sometimes the most dangerous people are the ones you least expect.

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.

While most killers act alone, there's another type of murder that happens less frequently yet still produces horrific consequences. That's when people decide to kill as a group. This Investigation Discovery series details true-crime cases that involve victims who have been savagely murdered by their own friends. Stylized re-enactments featuring first-person accounts from law enforcement personnel and friends and family of the victims accompany each story.

Maybe it's the jealous ex, the co-worker seeking revenge, or perhaps a predator with an appetite for blood? Whatever the motives, crimes are most often solved by relentless investigators searching for the truth and following clues wherever they may lead. This series explores the emotional stories of those attempting to find closure in homicide investigations, from the victims' families to the dedicated police officers. Hourlong episodes present compelling versions of what may have happened and stylized re-enactments of events from different perspectives as new evidence emerges.

Each episode follows a new investigation and takes viewers behind the true stories of murder ignited by infidelity and deception. Featuring re-enactments and juicy firsthand interviews with friends, family and investigators, secrets reveal a tangled web of lies. With surprising twists and turns and unexpected suspects, the killers are brought to justice for these intensely personal crimes of passion.

Channeling her personal experience as a stalking victim for eight years, criminal psychologist Dr. Michelle Ward has made it her mission to probe psychopathic behavior. In "The Mind of a Murderer," Ward goes behind bars to interview violent killers and offer insight into what drives people to commit heinous acts. Each hourlong episode begins with Ward combing through evidence to formulate a theory on a killer's true psyche. She then conducts a riveting interview with a killer -- face to face, alone in a room -- which is contrasted with emotional statements from the victim's family and friends who are seeking closure. Ward also hosts the series "Stalked: Someone's Watching," which profiles stories of stalking victims and the psychology of their perpetrators.

With one quick click the internet allows people to share information like family photos and professional accomplishments, making it easy to ignore or forget that behind clever screen names and witty captions is a dark digital world with real dangers and risks. In hour-long episodes, "Web of Lies" unravels tragic stories of deception and manipulation triggered by online interactions, from predators lurking behind Facebook profiles to creeps scouring chat rooms for their victims. Re-enactments are buttressed by comments from law enforcement personnel, true-crime experts and psychologists, plus first-person accounts from friends and families of the victims.

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.

Everyone is hiding something in "The Lies That Bind." It may be a harmless secret. Or it may be something far more serious -- a terrible betrayal or a shocking indiscretion. Investigation Discovery's true crime series tells the stories of murder investigations that expose one truth after another, revealing the sinister realities behind closely guarded facades and the dark underbellies of tight-knit communities. Investigators don't know whom to believe as interviewees harbor different points of view and tell wildly different stories.