When a criminal on probation embarks on the killing spree of ex lovers, police try to get ahead of the man who will later insist he is a victim. S3 Ep7
A fraternal bond can be unbreakable - with codes based on favourite films and silly plans. But what happens when a body is found and the codes are used for murder? S3 Ep6
Jennifer Pan witnessed the murder of her mother and the attempted murder of her father. But when he wakes from a coma, her father has a very different story to tell. S3 Ep4
After the death of her husband, author Helen Bailey found happiness in a new partner. But when she disappears two years later, friends and family start to ask questions. S3 Ep3
Ridgway remains one of the most prolific murderers in U.S. history. He evaded capture for decades, even killing prostitutes while his young son waited in the back of his car. S2 Ep5
Pickton was a pig farmer who killed 49 women before feeding them to his hogs. He was caught when an undercover police officer was placed with him as a cellmate. S2 Ep4
Two British serial murderers who killed a generation apart, but with a common goal - they killed to achieve an infamy that had eluded them in everyday life. S2 Ep3
Few serial killers have divided opinion like Aileen Wuornos. Having gunned down six people, she confessed to her crimes. But this was not enough to save her from the green mile. S2 Ep2
When Ted Bundy agreed to a dead bed confessional interview with detectives whilst on death row, he revealed the horror and true expanse of the women he had murdered. S1 Ep5
When Nurse Elizabeth Wettlaufer walked into a police station, she confessed to murdering eight patients with insulin, but explained that she had the ultimate motivator- God. S1 Ep4
In previously unheard Police confessional interviews, Robert Black reveals a chilling insight into the mind that murdered four young girls, and cast speculation on the fate of many more. S1 Ep1
When Becky Watts disappeared, the country was anxious for her return until police find her body. Soon, a computer history shows that evil lies close to home. S3 Ep1
A fraternal bond can be unbreakable - with codes based on favourite films and silly plans. But what happens when a body is found and the codes are used for murder? S3 Ep6
When a criminal on probation embarks on the killing spree of ex lovers, police try to get ahead of the man who will later insist he is a victim. S3 Ep7
Jennifer Pan witnessed the murder of her mother and the attempted murder of her father. But when he wakes from a coma, her father has a very different story to tell. S3 Ep4
As Paul Bernardo and Karla Homolka exchanged vows, the remains of Leslie Mahaffy were being pulled out of a lake. When the marriage starts to falter, secrets are spilt. S3 Ep2