A man is found dead, stabbed to death with a knife. The chocking thing is that his face has been removed. After questioning his wife who described the marriage as happy also told that a mysterious foreign man knocked on their door the day before the murder. Beck and his men are given the case.
Originally planned as a two part docudrama - "The child's story" and "The double sentence". In the years 1982-84 was three women prostitutes murdered in Stockholm. 27-year-old Catrine da Costa was the third in this row. The murders had similarities that never before was recognized. Two medical doctors identifies as murderers in the media. The two was at first convicted of murder in the district court and then acquitted by the District Court.
Beck follows Swedish police officer Martin Beck and his team as they investigate various crimes.
