Crossing the Line with M. William Phelps offers an immersive journey into the darkest corners of true crime, meticulously dissecting cases of missing persons and murder from inception to resolution. Host M. William Phelps, a New York Times best-selling author and seasoned investigative journalist, brings over two decades of expertise and a profound personal connection to violent crime, having experienced the murder of his own sister-in-law. This unique blend of professional rigor and deep empathy shapes a distinctive 'campfire storytelling' style, allowing listeners to connect intimately with the victims' families and the intricate details of each investigation. The podcast explores a range of cases, from modern mysteries involving complex webs of deceit to historical crimes, providing a comprehensive and often chilling look at human depravity and the pursuit of justice. It appeals to true crime aficionados seeking in-depth, empathetically told narratives that go beyond headlines, offering a nuanced understanding of the impact of crime on individuals and society.