Delving into the stories of killers who broke the Hippocratic Oath to use their medical knowledge for murder, taking the lives of often vulnerable victims instead of caring for them.
A romantic trip in Zambia becomes the scene of a suspected murder. Bianca lies dead from a shotgun wound. Did she shoot herself, or is her husband to blame? (S2, ep 1)
When she discovers her husband is cheating on her, Clara Harris' rage knows no bounds. A car becomes her weapon and her sights are set on revenge. (S2, ep 2)
The tragic death of Dr Klein at the hands of her husband, who used his knowledge of cyanide poisoning to ensure his wife would never divorce him. (S2, ep 3)
When Lynn is found dead at home, it's presumed she has taken her own life. No one suspects her close friend but what unravels is a tale of greed and lies. (S2, ep 4)
Nurse Genene Jones is believed to have killed as many as 60 children in her care by injecting them with muscle relaxants and other drugs. (S2, ep 1)
Nicknamed 'Dr Death', neurosurgeon Christopher Duntsch destroyed the lives of many who end up in his operating theatre. (S2, ep 6)
A husband is found dead at home after a fire but everything isn't as it seems. His death is caused by something else, something a Nurse - like his wife. (S2, ep 7)
The unbelievable story of a Canadian serial killing nurse who walked into a police station and confessed to a murderous rampage. (S2, ep 8)
A hospital thrown into chaos, a police force looking in the wrong direction. One nurse fooled the authorities to cause destruction and death. (S2, ep 9)
Nurse Jeanine Hannah is employed to help 68 year old Margaret Bradley. Instead of care, she injects her with a lethal dose of insulin, killing her. (S2, ep 10)
A nurse is killing her patients on the night shift, the families are left grieving and fighting for justice, but then a shocking death changes everything. (S2, ep 11)
Donald Harvey is seen as a good worker. In fact, he is a serial killer who confesses to multiple murders - but no one initially believes him. (S2, ep 12)
Nurse Charles Cullen says he hated to see people suffer but he became the most prolific serial killer in New Jersey history. (S2, ep 13)