The true crime series that examines the cases of killer nurses around the world is back for an all-new and exclusive second series.

Out of everyone in society nurses are the people we trust the most. They take care of us in our hour of need, they help us to get better and they all do it with a smile on their face. But what happens when that trust is betrayed; when something more sinister bubbles up to the surface? Suddenly our expectations of having our lives saved are replaced by fear and the suspicion that, in these cases, our lives are at risk.

Once again, the 10-part series includes previously unheard audio interviews with killer nurses, evidence gleaned from the facts of different cases, opinions from the experts, and dramatised action showing viewers the full, chilling stories of nurses who kill.