After his December 2003 arrest, registered nurse Charlie Cullen was quickly dubbed "The Angel of Death" by the media. But Cullen was no mercy killer, nor was he a simple monster. He was a favorite son, a husband and beloved father, a best friend and a celebrated caregiver. Implicated in the deaths of as perhaps as many as 400 patients, he was also perhaps the most prolific serial killer in American history.

When, in March of 2006, Charles Cullen was marched from his final sentencing in an Allentown, Pennsylvania, courthouse into a waiting police van, it seemed certain that the chilling secrets of his life, career, and capture would disappear with him. Now, in a riveting piece of investigative journalism nearly ten years in the making, Charles Graeber gives us the unbelievable true story.

Based on hundreds of pages of previously unseen police records, wire-tap recordings and videotapes and interviews with whistleblowers and confidential informants, and years of exclusive jailhouse conversations with Cullen himself, the homicide detectives who worked against the clock and administrators to try and finally crack the code on Cullen’s crimes, and Cullen’s fellow nurse Amy, an overworked single mom asked to choose between protecting her friend Charlie and stopping a potential serial killer, THE GOOD NURSE weaves an urgent and terrifying tale of madness, humanity and heroism.