The case of care home worker Karen Pedley who was given 14 life sentences in 2016. Deeply affected by a fire at her home when she was a child, Pedley developed into a pyromaniac.

The story of Sandra Weir, who acted as a carer for her elderly neighbor. But she was stealing from the pensioner to fund her drug addiction, leading to a tragic confrontation.

The case of New York paramedic Paul Novak, who boasted of committing the perfect murder after the dust had settled on the death of his first wife Catherine.

The case of carer Thomas Dunkley, who aided boxer Shaun 'The Guv'nor' Cummins after he became paralysed, and later killed and dismembered his patient.

The story of debt-ridden mother-of-three and night-time sex worker Beverley James. By day, she was meant to care for Harriet Davison, a frail woman she beat to death.

Care worker Thelma Purchase plotted with her son and a friend to murder disabled Greg Baker who Purchase once worked for. She knew he couldn't defend himself and she stood to be a beneficiary in his will.

The murder of American politician Kathy Augustine, who died after being given the paralysing drug succinylcholine by her husband Chaz Higgs, a professional nurse.

This edition looks at the case of care worker Bunthawee Rimmer, who beat Paul Norfolk to death in a hammer attack after he changed his will to leave her a sizeable legacy.

When an autopsy reveals high levels of insulin in Eric Lloyd's body, police realise that his widow, nurse Marie Whiston, had been using her medical skills not to care but to kill.

This edition examines the story of Alison Firth, a nurse who was unable to face the amount of work required caring for her 84-year-old charge and resorted to extreme lengths to avoid the work.