S01:E01 - Stephen Akinmurele: Blackpool, 1999
Stephen Akinmurele is one of the UK's most prolific but least known serial killers.
S01:E02 - Terry Clifton: Morecambe, 1997
Terry Clifton murdered Tony Marrocco and his colleague Paul Sandham at their garage in Morecambe.
S01:E03 - Mathew Hardman: Anglesey, 2001
Teenage paper boy Hardman carried out one of the most horrific murders in recent history.
S01:E04 - Colin Gunn: Trusthorpe, Lincolnshire 2004
Colin Gunn was one of the most feared gangsters in the UK.
S01:E05 - Paul Longworth: Southport 1997
Paul Longworth murdered his wife and staged it as a suicide.
S01:E06 - Steven Grieveson: Sunderland, 2013
Grieveson preyed on school boys who all attended the Monkwearmouth Academy School in Sunderland.
S01:E07 - John Cooper: Gower Peninsula, 2009
A game show-loving, shot gun-wielding serial killer murders four people.
S01:E08 - Malcolm Green: St Brides, 1990
Dubbed the body in the bag killer, Malcolm Green murdered two people including backpacker Clive Tully.
S01:E09 - Graham Fisher: Shoreham, 1998
In the Summer of 1998, maniac Graham Fisher murdered two women, eating the flesh of one of his victims.
S01:E10 - Jack Campbell: Sanday, Orkney Island, 2010
Campbell ran a monkey Sanctuary. It was a mutual love of monkeys that saw him seduce a woman.
S01:E11 - Michael Ross: Orkney Island, 1996
Michael Ross was just 15 when he burst into a restaurant on Orkney wearing a balaclava.
S01:E12 - Vitas Plytnykas: Brechin, 2008
Vitas Plytnykas was an ex-Red Army soldier who became obsessed with and murdered a fellow migrant worker.