I dreamed I saw a movie that was a bit like Misery with touches of Gerald’s Game. The main character spent most of the story tied to a bed. His kidnapper was a woman, and she spent the movie taking care of him, feeding him, and so on. The woman was really bubbly and doting, and talked to him as if he was there by choice. (Despite the theme, it was not a sex dream.)
The woman kept him docile by drugging him, and the drugs gave him hallucinations. He kept seeing the woman as different women he’d known throughout his life. Different actresses played the woman every few minutes, but they all had the same mannerisms and crazed personality, since their appearance was just a hallucination.
The man believed that he was being punished for something, so the movie kept showing flashbacks, memories of women he'd wronged. Each time the woman had a new face, he'd remember the worst thing he'd ever done to that woman.
In the end, the hallucinations wore off, and he saw the woman for who she really was. She was a stranger to him. He'd seen her a couple of times in a crowd, but he'd never interacted with her. The woman, however, was obsessed with him, and had been stalking him for a while.
He did manage to escape in the end.
