I'm a few episodes into My Perfect Stranger. A TV news anchor finds a car labelled Time Machine, with instruction manual. Seemingly it only goes into an old tunnel and through to a nearby town. He goes back to 1987 to investigate a serial murder case, getting himself hired as a high school teacher because all the suspects were teenage boys. In one of his trips back and forth, he accidentally picks up a second person, a young woman who has just lost her mother, also a teen during that time.
(It occurs to me that I have absolutely no idea why he doesn't journey further.)
The Story Of Park's Marriage Contract - Joseon era new bride's husband dies on her wedding night (he was in poor health). Soon after, she is kidnapped and thrown down a well, emerges in the present day in a hotel swimming pool saved by a man who looks like her deceased husband. The fish-out-of-water aspect was fun.
Parallel World (China 2023, does not seem to be on above lists). Rather than a parallel world, I'd describe it as a pocket world that some people can drive in and out of. Really good actioner with strong fantasy elements, superb performance by the FL.
