In episode one Sasha Wass and Jeremy Dein investigate the case of Charlotte Bryant, who in the 1930s was arrested and hanged for the murder of her husband, Frederick Bryant, by arsenic poisoning.Charlotte and Frederick were parents to five children, all of whom were put into an orphanage after the deaths of their parents. Their son, William, did not find out about his family's history until he read about it in a newspaper in 1964. William did not tell his own son, David, until he was in his 30s.William and David join forces with Sasha and Jeremy to re-examine some of the finer details of the case. Intimidation of key witnesses and mostly circumstantial evidence are a cause for concern for the barristers. But do they believe they have a compelling case to present to a Crown Court judge?