Louis Theroux: By Reason of Insanity

Can you tell the difference between fact and fiction? Several stories of strange, mysterious and incredible occurrences are chronicled during each episode. It is up to the viewer to decide which stories actually happened and which were completely fabricated by the show’s writers. The answer is revealed by Jonathan Frakes at the conclusion of each episode.

Monsters can be found lurking behind any innocent smile and on any street corner in America. Never-before-seen-video footage stares straight into the eyes of these killers who hide in plain sight. Anyone can be a monster.

Some of the most amazing, eye-opening and downright scary paranormal videos from around the world are featured as a panel of experts break down the footage and analyze what exactly the eyewitnesses captured.

Uncover the heart-wrenching true stories behind crimes that transcended headlines and became part of popular culture. Exclusive first hand interviews reveal shocking twists, new evidence, and unexpected resolutions.

The fascinating cases of every day, seemingly average moms, wives and girlfriends accused of murder. Did they really do it? And if so, why?

Eighty-five million acres make up the National Park System, and only 33 special agents nationwide are responsible for investigating crimes that occur on this public land. This documentary series follows the uniquely qualified team that leads the investigations as they seek to bring law and order to some of America’s most rugged and remote landscapes, tackling a new case each season.

These are the terrifying tales of the unwanted neighbors who turn home sweet home into home sweet hell. A look inside the lives of horrific neighborly disputes and what happens when a simple issue turns into the worst night of a family's life. Do you really know who lives next door? This true-crime series tells the chilling tales of those with the misfortune to unwittingly take up residence within a stone’s throw of a psycho or killer.

In this harrowing reality series, “Survivorman” Les Stroud travels to far-flung locales with little more than the clothes on his back and 50 pounds of camera equipment to battle - and try to survive - insanely harsh conditions.

After marrying a mysterious man who claimed he could make her dog immortal, a celebrated vegan restaurateur finds her life veering off the rails.

Explore compelling cases that have gone cold for years, chronicling the journeys of the detectives who reopened them. The detectives relive the events of the crimes, reveal new twists and startling revelations, relying on breakthroughs in forensic technology and the influence of social media to help crack these cases.

"Everybody Loves Raymond" creator Phil Rosenthal travels the globe to take in the local cuisine and culture of Bangkok, Lisbon, Mexico City and more.

Real crimes, disease outbreaks and accidents around the world are solved by experts using scientific laboratory analysis which helps them find previously undetectable evidence. Brilliant scientific work helps convict the guilty and free the innocent.

Follows 5 NBA players throughout an entire NBA series, delving into their on-court performance and off-court personal lives.

Profiles of some of the men who choose to live off the grid in the unspoiled wilderness, where dangers like mudslides, falling trees and bears are all part of everyday life.

In this romantic docuseries, people on the autism spectrum look for love and navigate the changing world of dating and relationships.

You saw him on Ghost Adventures, now, Dakota Laden takes his sister and best friend on a cross-country road trip to visit the most haunted locations in America.

Viewers go deep into an Alaskan winter to meet six tough and resilient residents as they try to stay one step ahead of storms and man-eating beasts to make it through to spring. The closest neighbor to Sue Aikens is more than 300 miles away. Eric Salitan subsists solely on what he hunts and forages. Chip and Agnes Hailstone catch fish for currency in bartering for supplies, and Andy and Kate Bassich use their pack of sled dogs for transportation.

What happened in the final days of Gabby Petito's life? In this gripping true-crime series, her loved ones reveal the untold story of her tragic murder.

The story of the Second World War through the personal accounts of a handful of men and women from four American towns. The war touched the lives of every family on every street in every town in America and demonstrated that in extraordinary times, there are no ordinary lives.

This hourlong documentary series focuses on the issue of teen pregnancy, with each episode detailing the wide variety of challenges -- marriage, adoption, finances, gossip and graduating high school among them — a pregnant teenager faces while still coming of age.