I starts with a woman , she is going to work in a house , there she helps a man with doing things in home.
The man can't walk and talk. During the movie she finds out there happened something terrible and its about a like curse to take someone else's living years and body and let you live further in that body.

The Skeleton Key (http://www.imdb.com/title/tt0397101/)?

Thank you very much , that's the movie I searched for :)

You're very welcome.