The participants try to stay focused on their purpose in the midst of wild parties and difficult cellmates.

Dubbed the 'Vampire Killer,' teen Mathew Hardman thought that by taking a life he would become immortal. His victim was elderly neighbour Mabel Leyshon. After stabbing her to death, he removed her heart and drank her blood, before placing a cross at her feet.

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A man whose teenage daughter was killed in a gang-related shooting meets with the perpetrator in order to seek answers.

He thought he'd hit the jackpot when he found love with a successful businesswoman. But things took a deadly turn when the relationship fell apart.

Robbie Coltrane examines the case of Scott Singleton, who murdered a 17-year-old girl after luring her to a bogus job interview.

Lieutenant Joe Kenda unearths a dark story of deception, lust and revenge after two hunters discover a blood-drenched car on a remote mountain road.

Friends and family of pregnant teenager Nikitta Grender talk emotionally about her murder in Newport in 2011.

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This series follows the journey of the victim - or surviving family members - of a life-altering crime as they come face-to-face with their offender in the hopes of finding answers or seeking some sense of closure.

Joe is faced with one of the most dangerous criminal masterminds he's ever encountered as he investigates the shooting of a woman in Colorado Springs.

The parents of Kelly-Anne Bates look back on their daughter's relationship with her murderous boyfriend.

He claimed the lives of at least 33 victims, including teenage boys - rocking a Chicago community. But he also had a charitable side.

The story of the calculated serial killer continues, diving deeper into how he was able to hide in plain sight.

Armed with little more than a vague witness description, Joe Kenda leads a state-wide search for the ruthless murderers of two elderly shop owners.

Experts examine the psyche of New Year killer Michael Atherton, who killed his partner and two others in County Durham in 2012.

Follow detectives during the critical first 48 hours of a murder investigation.

Kenda investigates the execution-style shooting of an elderly woman, and works with Walker to figure out who's to blame when an infant stops breathing.

Using only his instincts and a tiny clue found in the victim's pocket, Lieutenant Joe Kenda hunts for the brutal killer of an unidentified young man.

A look at the case of Ian Walters, who deliberately drove off the motorway at high speed to kill his wife Tracy.

Tragedy strikes in the courtroom when a gun ends up in the wrong hands. Meanwhile, a defendant turns on his attorney in a brutal attack, and someone bares all for the judge.

A judge is threatened by a murder suspect. Meanwhile, there's a savage attack in the courtroom when two sons see red as their mother's killer is sentenced.

Two deaths. Two conflicting stories. What really happened? Brandon Hutchinson and Michael Salazar discuss the night that landed them in prison for life.

Joe Kenda investigates the murder of two sisters, uncovering an explosive secret that points him to an unexpected prime suspect.

When a marriage ends in flames, investigators must determine whether it was a tragic accident or a sinister act of revenge.

Investigators get a shock when they look into a woman whose loved ones keep suffering untimely deaths.

A look at how a preacher's daughter executed her cold, poisonous plans. Plus, a cheating woman heads to the garden shed to find a way to get her revenge.

The search for a missing man leads police to his girlfriend and a host of secrets about their past.