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".

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

Gory real-life footage of blood and guts on the German Autobahn, drug smugglers getting blown away, a parachutist landing in a crocodile pit, torture and murder in El Salvador, a PCP addict getting stoned, a videotaped rape/murder, a car thief getting ripped apart by two junkyard dogs, and much more.

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.

"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.

Peter Moore, the murderer known as the 'man in black', has now served 25 years in prison. Back in 1995, he terrorised communities along the north Wales coastline, killing four men and allegedly attacking many more. By day he was a well-respected shopkeeper and cinema owner in Kinmel Bay, and by night he was a sadistic killer who seemed to target gay men. In this special edition of Dark Land, former chief constable Jackie Roberts returns to re-examine the hunt for the man who would go down in history as Wales’s worst serial killer. Moore is revealed as a man with a violent secret life, hiding in plain sight. Beneath the façade of a respectable businessman was a mind warped by a dysfunctional upbringing; a man who seized upon a climate of gay prejudice to embark upon a 20-year spree of savage attacks, confident his victims wouldn’t feel able to come forward to complain. The ultimate question is, could Moore have been stopped before he went on to kill and kill again?

During a three-month period in 1888, a knife-wielding serial killer murdered six women on the streets of Whitechapel. Their throats were cut and their bodies horribly mutilated. He was never caught and his identity remains one of the world's greatest crime mysteries. In the years that have passed since Jack the Ripper's killing spree, many high-profile suspects have been suggested, yet the fact remains that none of them can be placed at any of the crime scenes. Now, journalist Christer Holmgren believes that he has found a suspect who can not only be linked directly to one of the murders but also whose daily routine could be consistent with all the other deaths

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.

Charlie Cullen was an experienced registered nurse, trusted and beloved by his colleagues at Somerset Medical Center in New Jersey. He is also one of history’s most prolific serial killers, with a body count potentially numbering in the hundreds across multiple medical facilities in the Northeast.

A documentary featuring interviews with the people involved with the Zodiac killings, covering every aspect of the investigation, including the original investigators and surviving victims.

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.

America has a fascination with serial killers. Many of them are household names, Ted Bundy, John Wade Gacy, Jeffrey Dahmer. But there is another group of serial killers with even higher body counts. However, chances are you've never heard of Samuel Little, The Grim Sleeper, or The Sunday Morning Slasher. Combined these men have 85 confirmed murders. There are no books, movies, or television shows about these killers. Why? Because they are black serial killers. Filmmaker Sean Reid explores black serial killers and the lack of public information and media representation about them. Reid interviews Allan Branson, a criminal justice professor. Branson discusses the history of African-American serial killers and the negative stereotypes and biases that have influenced their portrayal in the media.