
Examining some of the most dangerous and prolific murderers in the UK and worldwide.

The story of a killer who took four lives during a chilling two-day killing spree in 2004 after being inspired by horror films.

Geoffrey Evans and his accomplice John Shaw hit headlines in 1976 after the murders of two women in Ireland.

The story of Mark Martin, who murdered three homeless women in his quest to become Nottingham's first serial killer.

Malcolm Green is jailed for life for the brutal murder of a Cardiff prostitute; he kills again when he is released after 18 years.