Episode list

Investigating how the psychological state of Dennis Nilsen, who killed at least 15 men and boys, was approached by the judiciary and media, after the serial killer claimed he committed the murders in a trance.

Between 1975 and 1980, Peter Sutcliffe terrorized the north of England, killing 13 women and injuring more. This documentary examines how he was eventually brought to justice.

Investigating Arthur Shawcross, who murdered 11 women in the city of Rochester, New York, in the late 1980s. To build their case, police had to rely on ground-breaking criminal profiling work by the FBI to help catch the killer.

The unsolved case of the Monster of Florence, who preyed on young couples and committed murders in and around the city in the early 1980s, but who has never been officially identified.

Profile of serial killer Aileen Wuornos, who was convicted and sentenced to death for the murders of six men in Florida over the course of a year. The programme explores how police were able to gather only circumstantial evidence against Wuornos, and launched an undercover operation to lure her and a possible accomplice out into the open.

The story of 'chessboard killer' Alexander Pichushkin, who aimed to kill 64 people - one for each square on the board of the game - but was caught before he could complete his task.

The Snowtown murders, also known as the Bodies in Barrels murders, were the murders of at least 11 people in the Adelaide area, Australia, between August 1992 and May 1999.

The hunt for the Suffolk Strangler, who murdered five prostitutes in the Ipswich area during 2006, leading to the largest manhunt since the Yorkshire Ripper

Marc Dutroux (born 6 November 1956 in Brussels) is one of the most disturbed human beings ever born. He is a Belgian criminal, convicted of having, in 1995 and 1996, kidnapped, tortured and sexually abused six girls, ranging in age from 8 to 19, four of whom died as a result. He was also convicted of having killed a suspected former accomplice, Bernard Weinstein. Arrested in 1996 and has been in prison since then. His widely publicized trial took place in 2004. A number of shortcomings in the Dutroux investigation caused widespread discontent in Belgium with the country's criminal justice system, and the ensuing scandal was one of the reasons for the reorganization of Belgium's law enforcement agencies. The Belgium government's failure to capture him nearly caused a revolution. Did the government prevent his capture? Was there a cover up?

The case of Japanese businessman Joji Obara, who came to the attention of Tokyo police in 2000, while they were investigating the disappearance of Lucie Blackman