I am going to commit a murder. I offer no apology for the curtness of the statement. An individual taking the name 'Marius' boasts in a series of letters that he will commit the Perfect Murder, daring Scotland Yard detectives to catch him if they can. Ex-CID officer John Franklin and the amateur but astute detective Ludovic Travers will need to draw conclusons from a soiled letter, a locked room murder, four cast-iron alibis, and trips to France, in a feverish search for the killer and proof of his misdeeds-before 'Marius' can strike again. The Perfect Murder Case was originally published in 1929. This new edition features an introduction by crime fiction historian Curtis Evans. "All the points of the good detective story are here … excitement, ingenuity, suspense, crescendo, and a satisfactory conclusion." Observer