On 22 Oct 1981 an American disappeared in Paris. His Israeli wife disappeared in England ten days later. Police enquiries led to a strange and squalid bungalow on the south coast, the home of the couple's son.... The case was investigated by the Hampshire police and scientists from the Home Office Forensic Science Laboratory at Aldermaston. The names of people and places have been changed.
An 11-year-old boy is the victim of a sexually-motivated killing. Police enquiries in the homosexual community lead nowhere. However, some tiny fibres found on the body attract the attention of the forensic scientists...