Roseanna (Paperback, New edition)

The naked body of a young woman is dredged up from a Swedish canal. She has been sexually assaulted and strangled. But no one has reported her missing and Martin Beck of the Stockholm homicide squad can find no clue to her identity. But then patience, a little luck and good, honest police work turn up a broken-down pleasure boat, information from Nebraska and some tourist's photographs, and gradually Beck's investigation comes to its troubling conclusion.