We see a woman hiding in an isolated house, as two armed men terrorize three people in the living room, and a pop song plays loudly on a record player. The three people get shot, and the woman runs. She winds up in town, where she hops into her car and speeds off, but gets into an accident, and someone sets her car ablaze. However, she'd gotten out of the car before it caught fire, and winds up in the hospital with amnesia. All she can remember is the gunmen, the murders, and fleeing the house.
A psychiatrist returns to the hospital he works at, having lost over $60,000 in Las Vegas. He treats the woman with amnesia until a specialist can arrive from out of town. The police, not knowing anything about the murders she remembered, are skeptical. They disseminate her photo by newspaper and TV, and a gunman soon arrives to kill her, at which point she's taken a little more seriously. The bad guys intimidate the doctor, by buying his marker, and demanding that he find out what happened to something of theirs the woman took. I know I've seen other movies with the plot element of "bad guys pressure doctor to find out information from patient," but the only one I can think of at the moment is Don't Say a Word (2001) - which I would say was a better movie than this one.
This was a pretty good thriller. There was a neat twist towards the end I particularly liked that cleared up a question I had that had occurred to me early on in the movie. The ending itself was fairly predictable.