Lucy Letby: Did She Really Do it?

"Sam, could you do me a favor?" A seemingly simple request sparks the story that has now become part of America’s true crime hall of fame - the journey of a young lawyer, fresh from the Public Defender’s Office, whose first client in private practice turns out to be the most evil serial killer in our nation's history.

The story of how surgeon Ian Paterson duped his patients into believing they had cancer and performed unnecessary surgeries on them before he was caught and jailed for 20 years.

The incredible story of Bruno Lüdke (1908-44), the alleged worst mass murderer in German criminal history; or actually, a story of forged files and fake news that takes place during the darkest years of the Third Reich, when the principles of criminal justice, subjected to the yoke of a totalitarian system that is beginning to collapse, mean absolutely nothing.

Serving life in prison for murdering their parents, Lyle and Erik Menendez speak out in this documentary explaining the shocking crime and ensuing trials.

Inspired by a book by acclaimed historian Simon Schama, Murder at Harvard uses a combination of film-noir drama and present-day documentary footage to tell the true tale of one of the most notorious American crimes of the 19th century. Grappling with frustrating gaps in the historical record, Schama assumes the role of a time-travelling detective who takes an unusual step for an historian and imagines how certain scenes and encounters might have played out. "Maybe I thought what I was after was not a literal documentary truth," Schama tells us, "but a poetic truth — an imaginative truth — and for that I was going to have to become my own Resurrection man. I was going to have to make these characters live again."

Nine years after the disappearance of Cédrika Provencher, Claude Poirier returns to the scene of the crime. With the help of lawyer Guy Bertrand, former minister Jacques Dupuis and witnesses of the events surrounding Cédrika's disappearance and the discovery of her skull, Poirier reveals all he knows about this sadly popular story.

This documentary delves into the unanswered questions surrounding the trial of Jessica Wongso — years after the death of her best friend, Mirna Salihin.

A young mother’s mysterious death and her son’s subsequent kidnapping blow open a decades-long mystery about the woman’s true identity, and the murderous federal fugitive at the center of it all.

An investigation into the original 1993 Michael Jackson allegations brought by the Chandler family.

In 1999, teen Rocío Wanninkhof is murdered. Her mother's ex-partner, Dolores Vázquez, is suspected. Did she do it? A second victim reveals the truth.

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.

The film follows the career of detective inspector Marianne Atzeroth-Freier through the Hamburg police force of the 80s and 90s. At the end of the 70s, Marianne is 30 years old and a single parent; she becomes one of Hamburg's first female police officers. Marianne is one of the first women ever to be promoted to the Hamburg homicide squad. The opposing forces in this male-dominated world are strong, she is not really taken seriously and is even bullied along the way, until she comes to the attention of the furrier Lutz R.. Against the considerable resistance of her superior, Marianne investigates in her spare time and makes a significant contribution to solving the case of the "acid barrel murderer".

Shortly before dawn on August 21, 1992, six heavily armed U.S. marshals made their way up to the isolated mountaintop home of Randy and Vicki Weaver and their children on Ruby Ridge in Northern Idaho. Charged with selling two illegal sawed-off shotguns to an undercover agent, Weaver had failed to appear in court and law enforcement was tasked with bringing him in. For months, the Weavers had been holed up on their property with a cache of firearms, including automatic weapons. When the federal agents surveilling the property crossed paths with members of the family, a firefight broke out. The standoff that mesmerized the nation would leave Weaver injured, his wife and son dead, and some convinced that the federal government was out of control. Drawing upon eyewitness accounts, including interviews with Weaver’s daughter, Sara, and federal agents involved in the confrontation, Ruby Ridge is a riveting account of the event that helped give rise to the modern American militia movement.

The saying 'time heals all wounds' couldn't be farther from the truth for the family of Mekayla Bali, the Yorkton teenager who vanished without trace more than three years ago. In the years that followed her disappearance, the feeling of grief, anger, and confusion only grew for her family. But despite their pain, they have vowed to never stop searching for Mekayla and never stop looking for answers. Focus Saskatchewan host Marney Blunt shares their story.

In the eyes of the law, former neonatal nurse Lucy Letby is one of Britain's worst ever serial killers, found guilty of the murder of seven babies and the attempted murder of many others. This documentary explores new questions that have emerged about the case, as well as meeting experts who hope to have it officially reviewed

The shocking story of how husband John Mook was being poisoned by his wife Heather.

Aileen Wuornos remains a rarity: a female serial killer. From childhood abuse to death-row revelations, this documentary revisits her life and crimes.

Raised by a man leading a monstrous double life, the daughter of the BTK serial killer shares her chilling story.

Jack the Ripper was a prince, a pauper, a mason, a madman... A host of more and more bizarre theories have surrounded the unexplained killings in Whitechapel since they hit the headlines in 1888. This film dispels the grisly fiction, revealing for the first time the true contents of the police and Home Office files on the case, drawing on the expertise of historians and of those who have encountered today's killers - on the street or behind bars.

Eleven bodies are found dumped on Long Island between 2010 and 2011; journalists Alexis Linkletter and Billy Jensen investigate corruption at the highest level of the Suffolk County Police Department and why the case has never been solved.