The Nilsen Files

In this true-crime documentary, a cult expert and filmmaker infiltrate a polygamist sect to expose a self-proclaimed prophet and bring him to justice.

Serial killer Jeffrey Dahmer confesses to his gruesome crimes in unguarded interviews, offering an unsettling view into a disturbed mind.

An overgrown field and a stretch of highway connect a series of grisly murders spanning several decades as grieving families search for answers.

What happened to Mica Miller? This documentary series retraces her promising life, toxic marriage and the mysterious circumstances of her death.

Death row inmates convicted of capital murder give a firsthand account of their crimes in this documentary series.

Through bodycam footage, texts and interviews with loved ones, this documentary investigates the horrifying murder of four University of Idaho students.

Chronicles the bizarre and psychologically complex story of six individuals who were convicted for the 1985 murder of a beloved 68- year-old grandmother, Helen Wilson, in Beatrice, Nebraska.

Interviews with friends, family and Sally McNeil herself chart a bodybuilding couple’s rocky marriage — and its shocking end in a Valentine's Day murder.

The true stories of people who lived with a killer. How well do you really know your family? Would you recognize the warning signs? Or would you become entangled in evil?

Archive footage, chilling reenactments and exclusive interviews shed new light on a tragedy — and two brothers — that suspended a city in terror.

In 1991, four teenage girls were brutally murdered at a frozen yogurt shop in Austin, Texas. What happened that night forever shook the Austin community and continues to mystify the police and haunt the families left in the wake of unthinkable loss.

This tense true-crime series examines the hunt for the Long Island serial killer through the perspective of his victims, their loved ones and the police.