It's a movie that is sort of like the roommate but they are not in school... the two women were really good friends in school and when they are adults one of the females visits the other one and then things get crazy... she wants her to drop her whole life and be with her but the other girl doesn't want to because she has a husband and a life... then she starts killing people and trying to frame the girls husband so that she will leave him... then at the end she reveals to the girl that all through college she was drugging her and having sex with her without her even knowing... and at the end the girl with the husband kills the crazy one... I can't remember the name of this movie... can anyone help?