Rylan Clark teams up with anthropologist Professor Alice Roberts to investigate one of the darkest and most harrowing chapters in British history: the murder of hundreds of women accused of witchcraft. Each episode centers on a specific witch trial. Rylan and Alice reopen a cold case and delve into the stories of several women accused of witchcraft in the 16th and 17th centuries. Many were found guilty and sentenced to death by hanging. They visit the Essex towns and villages where these women lived and died. Using original court documents and a team of historians, psychologists, and medical experts, they investigate the lives, alleged crimes, and trials of these women.