When it rains, it pours...
Perhaps I did not understand all the details, but I feel you.
I went through a similar drama almost 20 years ago. When someone dies suddenly, a lot of dirt rises to the surface. Strange people appear, who knows where they were before, and turn inside down your world, your common world, and it hurts a lot. And it really looks like rape.

Try to be among people with whom you feel comfortable. Or just alone in silence. I hope this merry-go-round stops soon and you can recover. Hang on in there, dear Anna.
Sending you my hugs!