I remember watching it around 2003-2004. A married couple have some sort of accident and their child is killed. The wife sees a doctor/psychiatrist and he sends a home help/carer to assist the wife. The carer seduces the husband during a massage. I think Brad Dourif might cameo as the doctor, and I vaguely remember thinking the wife was a semi famous actress from something else as well. I think at the end of the movie the carer goes psycho when the husband rejects her and they have to kill her.