Review of Ma mère

Where does the action take place, in Spain, one of the Spanish islands, the South of France etc?? Why did he in a rage fire the housekeepers? I did not understand the end. Did he finally have sex with his mother, or did he murder her by stabbing her? If so, why? When they carried out a body, was it hers?. What was the significance of some one in the hospital(?) getting a wash? Was it a morgue? When he was caught masturbating by the body why did he say that he didn't wan't to die. My understanding of the film would be much clearer if these points could be cleared up. Many thanks I welcome responses from anyone who can enlighten me on these points. Sheridanaj@aol.com