In 1987 a tragic fire swept through London's King's Cross underground station claiming 31 lives after a dropped match set fire to escalator machinery. The charred remains of the victims were painstakingly identified from a list of reported missing persons and their dental and medical records, but twelve months later, one body remained unidentified. The last victim acquired the name it had been given at the morgue, Body 115, and that was where it appeared the investigation would end late in 1988, when all leads had run dry. But Inspector Ian Wilkinson could not let the case rest. Despite much unwarranted and very public criticism over his handling of the search and rescue mission, he vowed that he would not leave the British Transport Police until the nameless 5 foot 2 inch smoker had been identified.