The Mystery of Murder: A Horizon Guide

A secret admirer's crush on a high school athlete takes a fatal turn.

When his daughter is murdered, William Duncan takes the law into his own hands, setting out on a quest for retribution. After killing the street thug responsible for her death, he finds himself in the middle of a war with the thug's brother, father, and their gang, who are equally hell-bent on getting even. What ensues is a tense back-and-forth game of vengeance. By the end, William comes to find that the quest for revenge never has a winner.

During a murder hunt game at a country house, to which Hercule Poirot is invited as an "expert", a real murder occurs.

Set in a gritty and decadent 1970s America, American Boogeyman follows the elusive and charming killer and the manhunt that brought him to justice involving the detective and the FBI rookie who coined the phrase ‘serial killer’.

When notorious criminal Jacob Sternwood is forced to return to London, it gives detective Max Lewinsky one last chance to take down the man he's always been after.

Unhappily married Richard Mason concocts a meticulous scheme to kill his shrewish wife so that he'll be free to marry her sister.

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.

Torture chambers, acid vats, greased chutes and gassing rooms were just some of the devices of death designed by the Torture Doctor, H.H. Holmes in his castle of horrors. Follows Holmes' entire life as a criminal mastermind.

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.

Former prosecutor-turned-therapist Hailey Dean is a powerhouse, Mensa bright, and acutely observant. During a tragic week, one of her patients loses her parents to separate fatal accidents along with millions of dollars that has seemingly vanished into thin air. When the police begin to question Hailey's patient, shes knows she is innocent. But who is the culprit?

A documentary of the decline of America, composed of archival material and exclusive footage, carnage, madness, and mayhem with an unapologetic sincerity on the factual depiction of violence in the industrialized nation of the United States. Featuring a juxtaposition of detailed accounts of terrible acts, brutal behavior, and interviews from experts and convicted killers alike.

Detective Hazel Micallef hasn't had much to worry about in the sleepy town of Port Dundas until a string of gruesome murders in the surrounding countryside brings her face to face with a serial killer driven by a higher calling.

Jim Douglass arrives in the small town of Rio Arriba in order to witness the hanging of the four men he believes murdered his wife. When the convicts escape, Jim tracks them into Mexico, determined to see that justice is done. But the farther Jim goes in his quest for vengeance, the more merciless he becomes, losing himself in an unrelenting spiral of hatred and violence.

At a gathering of mystery and true crime fans, Aurora Teagarden’s nephew, Phillip, is accused of murder when an unplanned onstage blackout during the play in which he is performing ends, revealing Phillip holding the bloody knife that has just killed one of the other performers. 12th installment in Aurora Teagarden Mysteries

This documentary examines the 1999 London bombings that targeted Black, Bangladeshi and gay communities, and the race to find the far-right perpetrator. He terrorized a city, seeking to ignite a race war but justice was served by those who wouldn't let his hate win.

In this world of contract killers, Morgan Gaines is the best of the best. When Morgan is hired to kill six people around the world, he soon discovers all the targets are also assassins unknowingly hired to kill each other.

Walker investigates a murder connected with a missing government weapon. In addition, he tries to track down a teen on the run from a crime syndicate.

When her husband goes missing during their Caribbean vacation, a woman sets off on her own to take down the men she thinks are responsible.

Travelling on the 4.50 from Paddington, Mrs McGillicuddy witnesses a murder on a passing train - but where is the body?

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