Waking the Dead - Series 8 - Magdalene 26 - Part 2

When a naked woman is found wandering the streets with no memory, and her DNA matches that found on a 1966 crime scene, Boyd finds himself dealing with a hot case as well as his cold case. But how are the two connected? The woman regains her memory, but still cannot explain why her DNA was found in a Soho brothel in 1966. Is it a case of mistaken identity, is she lying, or is there a more sinister explanation?