Mary, The Maniac Nun must battle through gangs of thugs, a corrupt Church and even a few Nazi's to bring her sister's killer to light and make them pay for her overdose.
In the aftermath of the Civil War, a former Army surgeon, a notorious gang, and a duplicitous Pinkerton agent cross paths in a tiny river town. When revenge and a fortune in gold are at stake, the town is caught in the crossfire.
Maniac Nun follows the story of Mary who is hell bent on finding and killing the responsible parties that sold her younger sister the drugs that ended her life.