Charlie Cullen was an experienced registered nurse, trusted and beloved by his colleagues at Somerset Medical Center in New Jersey. He was also one of history’s most prolific serial killers, with a body count potentially numbering in the hundreds across multiple medical facilities in the Northeast. Using audio from Cullen himself and emotional sit-downs with those closest to the events – including whistle-blower and fellow nurse Amy Loughren, the detectives who cracked the case, author Graeber, and family members of the victims – the film traces how the truth was initially too shocking for anyone to comprehend, and how Cullen’s horrific actions underscore an even bigger danger still lurking in our healthcare system.

Runtime: 94 min