A man is stabbed while helping a neighbour who's being burgled, and he tragically bleeds to death. The killer is murderer Ian McLoughlin, out on day release from prison. S1 Ep10
After murdering a teacher, David Cook was released from prison after 21 years. Tragically, just three years later, he strangled a pensioner to death. S1 Ep9
Marvyn Iheanacho had only been out of prison for six months before he killed a child. This terrible incident raised questions as to how the child ended up in Iheanacho's care. S1 Ep8
Fourteen days after being released from prison, Matthew Williams, a prolific offender with a long history of violence, viciously attacked a young woman. S1 Ep7
Convicted killer Ian Birley was out of prison on probation for eighteen months before he killed again. His second murder has all the hallmarks of his original killing. S1 Ep4
Joanna Dennehy had the world at her feet, but was in and out of prison for petty crimes. No one could have predicted she would become Britain's most notorious female serial killer. S1 Ep3
The remains of a young woman's body are found in the back of a blazing car. The suspected killers are two men who were both convicted murderers out of prison on parole. S1 Ep2
Theodore Johnson evades murder charges twice, only to be set free to kill for a third time. Tragically, all his victims are the people closest to him. S1 Ep1