Starring Devin Bonnée, Sean Patrick Flanery, Mike Doyle, and Erin Cummings. Based on a true story, a nun was murdered in her convent bedroom in Amarillo, Texas on Halloween 1981. The police arrested a young man, Johnny Frank Garrett, who always maintained his innocence but he was found guilty and sentenced to death. On the night of his execution, he wrote a curse letter condemning the people and their families who helped send him to his demise.