Audacity of Host

There are consequences when BFFs - short for best friends forever - turn into frenemies. Episodes showcase true stories of intense friendships - and, in some cases, more than that - taking a bad turn that results in the most tragic ending possible for at least one person involved in the relationship. The show serves as a reminder to viewers that not even the best of friends keep that status forever.

Hybrid docuseries offering an expansive exploration of the exploitative and genocidal aspects of European colonialism, from America to Africa, and its impact on society today.

Bizarre Murders reveals a true and surprisingly strange crime story. These are not serial murderers evading the FBI, but Fargo-like capers with shocking twists and unusual characters.

Working for nearly three decades with the Charlotte (N.C.) Police Department, Detective Gary McFadden has developed unorthodox methods that have helped him solve more than 700 homicide cases. He has a 90-percent success rate with the investigations he pursues. "I Am Homicide" shows how Detective McFadden uses his street smarts to work the neighborhood networks and gather critical information for leads, at times risking his life by trusting the streets he calls home.

Technology has become the new frontier in solving homicides, illustrating the surprising ways that cell phone data, smart watches, fitness trackers, GPS devices, geolocation coordinates, doorbell and traffic cameras, gaming devices, surveillance video, internet searches, apps, and social media messages can be the critical clues in murder investigations.

These chilling stories of murder hit terrifyingly close to home -- each a real-life tale about the last thing anyone wants to find in their basement, a dead body. Every episode will make one think twice before ever stepping foot in the basement again.

The humble origins of Marilina Bogado, and how she became the paraguayan queen of "Cumbia"

When it comes to murder, no detective starts their search at the beginning of the crime. Rather, a murder investigation always begins with the body, after the deed is done. It is up to the police to piece together the story, moving backwards in time until they arrive at the root of the crime. In REDRUM, viewers follow the backwards tale of murder from false motives and mistaken witnesses to conversations taken completely out of context, until the truth finally comes out at the very end.

Disturbing cases of individuals who murder their own best friends and examination of the different factors that drove them to commit this heinous crime.

Baskoniako Historia Bat

This extension of the long-running true-crime series 'Snapped' shifts the focus to couples whose passion drives them to commit terrible criminal acts. Using re-creations and gripping firsthand accounts, each episode takes a deep dive into a case, telling the story of the couple's romance, how the relationship evolved from love to manipulation, and what ultimately drove the couple to commit the crime.

As America expands westward, intrepid explorers and rugged mountain men risk their lives to blaze new trails into the wild frontier.

Exploring the unbelievable true stories of suspicious deaths by retracing the investigation from start to finish, dissecting the red flags and undeniable evidence, and strange behavior that put the tragedy in question.

Caitlyn Jenner's first public appearance since her transition included making an impassioned, heartfelt speech at the ESPY Awards about the need for understanding transgender issues and "accepting people for who they are." For her part, Caitlyn -- formerly known as Bruce Jenner -- eagerly welcomes the responsibility to educate people. Follow Caitlyn Jenner's life as a transgender woman, telling her intimate story as she seeks out her "new normal," while offering a better understanding of many of life's challenges. Most of all, Caitlyn looks forward to living for the first time as the person she feels she was born to be. The docu-series also explores what her transition means for the people closest to her, including her children and stepchildren, and how those relationships are affected.

Southern Fried Homicide probes the juiciest stories from down in the Bible Belt. Classic true crime is served up against a backdrop of Southern hospitality, etiquette and Christian values. Good ol' morals give way to cold-blooded murder in these grim tales of love gone wrong, business deals turned sour, families divided, and more.

Most relationships have secrets, but what if the lies are huge – will the relationship be destroyed forever? Each episode of this hourlong series tells two stories, based on actual events, in which lies lead to consequences for the people involved. Family secrets and personal betrayal are often at the center of the situations that lead to explosive confrontations and, eventually, attempts at making amends. Dramatic re-creations bring the stories to life.

This true-crime series details the fascination with Christina Boyer. Boyer became a household name for her telekinesis as a teenager and the alleged murder of her own infant daughter in Boyer’s early 20s, a crime she maintains she did not commit. The series details the unlikely band of amateur sleuths obsessed with setting her free.

A series of reports chosen by "Dateline" correspondents that answers the question they most often get asked — what their most memorable story is and why.

Ciudad K

"The Perfect Murder" brings viewers some of the most diabolical, perplexing murder cases to land on detectives’ desks – the kind of cases that make or break careers and provide fodder for Hollywood mystery movies. These ingenious killers are every detective’s worst nightmare. Whether by planting false evidence, or writing anonymous letters to police, these murderers will stop at nothing to stay one step ahead and get away with the perfect murder. Detectives hit dead end after dead end, and wrong suspects are discarded. But one new clue can lead to another and the cold case suddenly gets hot. The truth is that it is the perfect murder -- until it's not.