Ireland's Black Widows: Ireland’s Black Widows tells the tales of women across Ireland responsible for the murder of loved ones through greed, jealousy and hate. The background and basis to these crimes of passion are explained through authors and journalists, who have spent endless hours investigating the murder cases. In each episode, the three cases featured will be discussed in detail, investigating the women’s backgrounds, significant incidents surrounding the particular cases and their motivation to cause these unforgivable crimes.