Rossa Venezia (2003) Full Movie

Nathalie catches her husband fooling around on her and goes John Rambo on his and the lover's collective asses, blasting her head off and stabbing him with a pitchfork. She is imprisoned and begins to keep a diary. The sadistic lesbian warden uses the women for her own kicks, and tortures them in goofy ways (thumbscrews, etc). 10 years later she is released back into the world, however, she has become a little unstable. Her prison time has led her to hate all women, and she sets out to sexually torture and murder anyone who dares enter her old home.