Sister Judi is a nun at a local convent, known for her piety and dedication to her faith. However, behind closed doors, Judi is hiding a dark secret - she is a serial killer. Despite her pious exterior, Judi has a violent streak and uses her faith as a cover for her criminal activities. As bodies begin piling up around town, the authorities struggle to figure out who could be behind the killings. Little do they know, the answer is closer than they think.