Best True Crime & Conspiracy Documentaries

The chilling story of one of the world's most notorious serial killers told through the words of Gacy himself, those who were forever changed by his unspeakable deeds and those who believe that the full truth remains concealed to this day.

Passionate about ocean life, a filmmaker sets out to document the harm that humans do to marine species - and uncovers alarming global corruption.

A group of online justice seekers track down a guy who posted a video of himself killing kittens.

A rivalry between big cat eccentrics takes a dark turn when Joe Exotic, a controversial animal park boss, is caught in a murder-for-hire plot.

An exclusive behind the scenes look at the infamous unraveling of the Fyre music festival.

Seduced follows India Oxenberg's abuse and her own culpability inside the NXIVM cult, an organization marketed as a self-help group.

Gripping examination of the unsolved crimes of the Golden State Killer who terrorized California in the 1970s and 1980s.

A young man is determined to solve an unspeakable crime and absolve the people he loves, while looking for answers within his fractured family and community.

In the early 1980s, the crack epidemic tore through America’s inner cities like a tsunami, ravaging all in its wake.

Documentary chronicling the terrorist attacks in Paris on November 13, 2015.

An in-depth look at the prison system in the United States and how it reveals the nation's history of racial inequality.

Documentary series that depicts hostage negotiations, the stories are told by the victims themselves.

A seven-part docuseries about the unsolved murder of a nun and the horrific secrets and pain that linger nearly five decades after her death.

In 1980 New York, three young men who were all adopted meet each other and find out they're triplets who were separated at birth. But their quest to find out why turns into a bizarre and sinister mystery.

In 2018, 34-year-old Shanann Watts and her two young daughters disappear in Colorado. With the heartbreaking details emerging, the family's story made headlines around the world.

Follow the Indianapolis Star reporters that broke the story about USA Gymnastics doctor Larry Nassar's abuse and hear from gymnasts like Maggie Nichols.

The twisting, turning, stranger-than-fiction true story of the Brobergs, a naive, church-going Idaho family that fell under the spell of a sociopathic neighbor with designs on their twelve-year-old daughter.

Five Mafia families ruled New York with a bloody fist in the 1970s and '80s, until a group of federal agents tried the unthinkable: taking them down.

This limited docu-series tells the true story of how one of the most notorious serial killers in American history was hunted down and brought to justice.

Investigators and witnesses recall how a modern-day Jack the Ripper terrorized the north of England during the late 1970s.

High-stakes exploits turn deadly - and shake a global church to its core - in the extraordinary true crime story.

Filmmaker Andrew Jarecki examines the complicated life of reclusive real estate icon Robert Durst, the key suspect in a series of unsolved crimes.

March 18, 1990, 13 works of art were stolen from the Isabella Stewart Gardner Museum in Boston. Guards admitted two men posing as police officers responding to a disturbance call, and the thieves tied the guards up and looted the museum.

Reenactments drive this documentary investigating the mastermind behind a scam to sneak the kids of rich and famous families into top US universities.

Heinous criminals have avoided capture despite massive rewards and global investigations. This docuseries profiles five of the world's most wanted.