This book presents two detective stories with very unusual plots. The hero of Maurice Level's novel "The Horror" is a talented reporter who decides to experience the same feelings as the criminal who committed the murder. In search of a thrill, he puts the police on his own trail, planting a cufflink and a piece of an envelope at the crime scene...Henri Revel, the author of the detective novel "The Widow Delilah", came up with an extraordinary story about a woman who undertakes to make a man suspected of murdering her husband fall in love with her. . She is sure that at some point he will give himself away. But this case will have a completely unpredictable ending...