Death Benefits is the fourteenth episode of Season 6. It was November 16, 2012.
Manling Williams enjoys her freedom, finding life as a wife and mother too confining, but does not want the financial strain of divorce. Despondent after her extramarital affair ends, she turns to murder, smothering her two young sons with a pillow and slashing her husband, Neal, 97 times with his prized Japanese sword.
In mid-20th century Alabama, Rhonda Belle Martin takes the lives of two husbands, three children, and her mother, and leaves a surviving husband paralyzed, via arsenic poisoning. Her motive is that she is addicted to killing and enjoys the thrill. Before her execution in 1957, she leaves her brain to science.
Feeling lonely while her husband, Jim, works nights, Marilyn Plantz seeks solace in the arms of a lover more than half her age. At her urging, her boyfriend and his friend murder her husband by beating him to death and then burning his body to make it look like an accident, so that Marilyn can collect on his life insurance. Each of these Deadly Women was sentenced to death.