Victims of Psychopaths Community Group
Is he or she a sociopath or psychopath? Think we're only talking about serial killers here? Psychopaths, sociopaths and even narcissists come in every walk of life, every career level, and every socio-economic category.
Can you talk openly and honestly to your boss? I had to do this with my ex as he was threatening to call my work. At the time I was going through so much - but I think that it just confirmed to them that I really shouldnt be back at work. It was an absolute nightmare, and just went on and on - but I was doing a job working with vulnerable people.
I think being open and honest might help (in my case I had other things going on and this was just one more thing on top of everything else) but for you if you have otherwise been a good employee, i would imagine that they would listen. They might appreciate you coming forward rather than them suspecting you? I really feel for you! :(