Based on actual events that took place in a Central European Country not many years ago. Yeah, right, of course it is.
This is where Nunsploitation meets Giallo, although it's not necessarily clear that's the case early on.
The story centres on Sister Gertrude (Anita Ekberg) who is apparently suffering from the trauma of surgery to remove a cancerous tumor from her brain, is convinced that she is still ill and is acting strangely and sometimes cruelly towards the patients in the hospital where she works. As if a nun would ever act in a sadistic manner.
It's a strange hospital, this one, it's really unclear who they're catering to, most of the patients are elderly, some seem…