After his 2003 arrest, the media dubbed registered nurse Charlie Cullen "The Angel of Death." But Cullen was no mercy killer or simple monster. He was a favorite son, husband, beloved father, best friend, and celebrated caregiver implicated in the deaths of as many as 300 patients ? perhaps the most prolific serial killer in American history. The Good Nurse chronicles Cullen's deadly career and the breathless efforts to stop him.