Jennifer Wendorf comes home to find her parents brutally murdered and sister missing; searching for answers, investigators discover a complicated web tracing back to a cult of self-proclaimed vampires.

Police in Kirtland, Ohio receive a tip about a family of five killed and buried in a barn belonging to a local cult; as they question the cult, investigators learn even more sinister details of power and manipulation leading up to the murders.

After hearing about a religious cult stockpiling weapons on an isolated farm outside Rulo, Nebraska, FBI agents cultivate an informant from inside the group who details the torture and murder being ordered by the group's diabolical leader.

After crossing the Mexican border from Brownsville, Texas, a student out on spring break goes missing; the investigation leads US officials to a cult known for practicing witchcraft led by a former male model and a high school cheerleader.

After three obedient followers die during an intense sweat lodge ceremony put on by a prominent self-help guru, police must determine if their deaths were accidental, or did the guru push the participants too far.

To his followers, he's an angel who died and came back to life, but when seemingly accidental deaths keep occurring around him, one investigator digs deeper.

Police investigating a 911 call for a suicide interview the victim’s girlfriend, who claims there’s more behind his death; police must determine if an online cult that believes in aliens and reptiles disguised as humans is actually at fault.

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The Gatekeepers saw themselves as pure participants in a religious quest to cleanse the world. When a member challenges the cult’s radical leader, cops discover how he paid for his disobedience with his life. Now his killers are nowhere to be found.

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