The Twilight Zone (2002) 1x6

A young woman's seemingly happy life unravels after a close call with a speeding car. The woman, Melina, begins to forget details of her lfie and how she met her fiance. Worse, she is haunted by strange phenomena: a mysterious bus that follows her and people who know her name that she's never met. Finally her fiance disappears without a trace, leaving her in a desolate life where she knows no one.