This is the author's highly acclaimed debut novel. Two men, an architect, Guy Haines, and a psychopath, Charles Bruno, meet on a train to swap murders. Charles will kill Guy's wife Miriam and Guy will kill Charles' father. A chance meeting and a rash conversation will trap Guy Haines, almost against his will, in a nightmare. This is a cunningly plotted melodrama and I read it with thorough enjoyment. Alfred Hitchcock shot a film baring the same name and the movie is equally thrilling. Classic suspense is still the best in my view!