The Girl Who Became Three Boys

In this twisting documentary, a mechanic tries online dating for the first time and meets a woman who takes romantic obsession to a deadly extreme.

Posing as a wealthy, jet-setting diamond mogul, an Israeli conman wooed women online then conned them out of millions of dollars. Now, some victims plan for payback.

This is the true story of a love triangle that takes place entirely online. Lies lead to murder in real life, as a teenage vixen (screen name 'talhotblond') lures men into her web. Revealing a shocking true crime story that shows the Internet's power to unleash our most dangerous fantasies.

Nev, a 24-year-old New York-based photographer, has no idea what he's in for when Abby, an eight-year-old girl from rural Michigan, contacts him on Facebook, seeking permission to paint one of his photographs. When he receives her remarkable painting, Nev begins a friendship and correspondence with Abby's family. But things really get interesting when he develops a cyber-romance with Abby's attractive older sister, Megan, a musician and model. Prompted by some startling revelations about Megan, Nev and his buddies embark on a road trip in search of the truth.

A string of threatening emails escalates into a revenge plot involving a newly married US marshal and his ex-girlfriend.

Kirat falls for a man she meets online, only to get swept up in a virtual relationship that upends her life for years. Her online courtship takes an unsettling turn when she learns that her romantic interest harbours a dark secret and sinister motives, leading to a harrowing ordeal, in this shocking documentary.

New exclusive access and never before heard testimony gives a unique insight into the mind of America's most notorious serial killer, Ted Bundy. Breathtaking archive from the time and the voice of Bundy himself, reveals the monster inside the man.

Vulgar, taunting texts blow up the phones of a teen and her boyfriend. Who's sending them — and why? This twisty documentary reveals the shocking answer.

In the mid-aughts, Dateline NBC's To Catch a Predator drew millions of weekly viewers to watch sting operations: men planning to meet minors for sex would instead be confronted by polished host Chris Hansen, then by the police — all on hidden camera.

When Juan Catalan is arrested for a murder he insists he didn't commit, he builds his case for innocence around unexpected raw footage.

The line between justice and revenge blurs when a devastated family uses social media to track down the people who killed 24-year-old Crystal Theobald.

In 1994, a 13-year-old boy disappeared without a trace from his home in San Antonio, Texas. Three-and-a-half years later, he is found alive in a village in southern Spain with a horrifying story of kidnap and torture. His family is overjoyed to bring him home. But all is not quite as it seems.