Movie idea

The movie starts out with a guy ("Jimmy") hanging out at a bar with his friend. This friend is newly single, his girl cheated on him and such. So they are chatting about his new hookups and the friend says check out this older milf chick, I met her once and she keeps texting me nasty things. Shows a quick screen and they laugh. After Jimmy's girlfriend kicks him out, he decides to start texting this filthy whore, but stops when her texts get creepy. Then she stalks him down and tries to kill him. Actually, this was just a bad dream I recently had.