Murders in any form, and the more gruesome the better, hold a morbid fascination to the British public but never more so than when the bodies of the victims are never found.

Aside from the lack of closure for relatives and friends, this factor creates problems for police and prosecutors and has macabre appeal for the public. Muriel McKay, wife of a senior News of the World Executive was kidnapped in 1969. Although her body, believed to have been fed to pigs, was never found, the perpetrators were convicted. The same fate was suffered by the business partner of a Polish farmer.

James Camb murdered a glamorous actress feeding her to sharks but this did not stop women flocking to see him in court. John Haigh confessed to disposing of his nine victims in acid. Again, his trial was a sell-out. Dick Kirby, former Scotland Yard detective turned best-selling crime writer has 'unearthed' a fascinating collection of disappearances such as the dismemberment of a gay man's wife who had threatened to expose him in the 1950s.

Later, when a woman's head was discovered near his home, he confessed only to find that it dated from Roman times. These and numerous other cases make Missing, Presumed Murdered a riveting, if grisly, read.