"Monique, an attractive and domineering woman doctor, has ensnared Fernand, a man of good will unhappily married to the shrewish Lucienne. The latter refuses to divorce Fernand and, insidiously, very cleverly, Monique succeeds in implanting in the mind of the tormented man the obsession that there is only one course open to him: Lucienne must be removed. The two, conspiring together, evolve one of the most ingenious murder methods in all the annals of crime -- absolutely foolproof and impossible to detect. The plan is put into operation; it is apparently a complete success; and then... "-- publisher's description