Using real cases, this documentary demonstrates the extent to which violent criminals can use social media to locate and manipulate victims.

In the summer of 1920, Shanghai was scandalized by a sensational murder, a high-profile case and subsequent trial that was the ongoing topic of conversation in the city's numerous cafes, clubs and teahouses. Among the various reasons for its notoriety, two stand out: first, the victim was a high-class prostitute, well known in Shanghai; second, the murderer had been a mid-level manager in a respected foreign firm, a playboy who in Manhattan might have been termed a "prominent young man about town." There were detailed press reports daily as the case wound its way through the judicial system.

Caroline Sturdy Colls, a world leader in the forensic investigation of Nazi crime scenes, is chasing clues to an unsolved case: a concentration camp that existed on the British island of Alderney. Witnesses and survivors claimed that thousands died there, but only 389 bodies have ever been found. Under heavy restrictions imposed by the local government, which may not want its buried secrets revealed, Colls must uncover the truth using revolutionary techniques and technologies.

A non-stop roller coaster ride through the scariest moments of the greatest terror films of all time.

Still today, people say that during the stormy night from March 31st to April 1st, 1922, the devil had come to Hinterkaifeck. On the farmstead near Schrobenhausen, all 6 inhabitants – 4 Adults and two children – are struck down bestially. The police did not manage to seek out the murderer(s). As the case is still unsolved as of today, the story still lives on in the minds of the people. Motion pictures, theatre plays, and the bestselling novel “Tannöd”, behind all of them stands Hinterkaifeck. Aspiring police investigators and a self-declared “Internet – special commission ‘Hinterkaifeck’” have now once again taken up the trail of the case. This exciting search for traces is followed by the film, and its findings are recreated in elaborate play scenes. Thereby, a picture of an era thought to be bygone and an idea of what really happened back then comes into existence. More precise than any fiction, the docudrama manages to get closer to the truth.

ABC retells the dark, disturbing story of Manson — and his twisted cult of devoted followers he instructed to carry out a series of grisly homicides in 1969. In this two-hour documentary.

Documentary telling the inside story of the plans by Louis Mountbatten to maneuver his nephew and heir to the Greek throne, Philip, into marrying the future queen Princess Elizabeth and the tensions that that unleashed.

The story of the murder of British backpacker Grace Millane and how her killer was caught.

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.

Today, few people's clothes attract as much attention as the royal family, but this is not a modern-day paparazzi-inspired obsession. Historian Dr. Lucy Worsley, Chief Curator at Historic Royal Palaces, reveals that it has always been this way. Exploring the royal wardrobes of our kings and queens over the last four hundred years, Lucy shows this isn't just a public fascination, but an important and powerful message from the monarchs. From Elizabeth I to the present Queen Elizabeth II, Lucy explains how the royal wardrobe's significance goes far beyond the cut and color of the clothing. Royal fashion is, and has always been, regarded as a very personal statement to reflect their power over the reign. Most kings and queens have carefully choreographed every aspect of their wardrobe; for those who have not, there have sometimes been calamitous consequences. As much today as in the past, royal fashion is as much about politics as it is about elegant attire.

An in-depth portrait of British composer, pianist and singer Elton John, pop star and myth of modern culture.

Broadcaster Gyles Brandreth travels to the West Yorkshire moors, known as "Bronte Country". It is an area that shaped the Bronte sisters, and they have, in turn, helped shape it. He explores some of the influences on their writing.

Lucy Worsley gets into bed with our past monarchs to uncover the Tales from the Royal Bedchamber. She reveals that our obsession with royal bedrooms, births and succession is nothing new. In fact, the rise and fall of their magnificent beds reflects the changing fortunes of the monarchy itself.

The true-life story of a Harlem's notorious Nicky Barnes, a junkie turned multimillionaire drug-lord. Follow his life story from his rough childhood to the last days of his life.

A thought provoking documentary feature film providing a comprehensive exploration of the evolution of signals intelligence over the past century. Whether you're intrigued by the secretive world of intelligence agencies or concerned about the implications of digital surveillance, this film will leave you with a deeper understanding of the role signals intelligence plays in society.

Norwegian researcher Petter Amundsen claims to have deciphered a secret code hidden in legendary playwright William Shakespeare's works that reveals a map leading to the location of certain treasures. British Shakespearean scholar Robert Crumpton embarks on a mission to prove he is spectacularly wrong. (A remake of “Shakespeare: The Hidden Truth,” including new discoveries.)

Errol Morris's unique documentary dramatically re-enacts the crime scene and investigation of a police officer's murder in Dallas.

A retrospective documentary about the groundbreaking horror series, Friday the 13th, featuring interviews with cast and crew from the twelve films spanning 3 decades.

Robert Oppel's documentary about the life and murder of his uncle and namesake, Robert Opel, the man who streaked the Academy Awards in 1974.

Equal parts documentary, essay, and narrative,"Captain Elliot's Circle" is mostly a poetic interaction with an obscure corner of Chinese and British history. Constructed using primary source documents about the taking of Zhoushan, Britain's first choice for a seaport, in the late 1830s,this movie uses Captain Charles Elliot's reluctance to brutalize the Chinese to reflect on the cyclical nature of history and the power structures that move it. The long takes used throughout function to illustrate the dramatically different ways in which people who lived in the mid-19th century perceived time. Additionally, it represents the psychological effect of living on an island regardless of what era you were born in.The last third of the movie focuses on a young woman whose strange day job has taken her far away from the island of Zhoushan generations after Captain Charles Elliot was last there. "Captain Elliot's Circle" was shot on location in Zhoushan and Hangzhou.