I start watching anything that has time travel tag. Start, mind you, not necessarily finish though! So of course I had to see this!

Year 2022: Yoon Young is an unhappy person. Her parents are a mess and she's bullied at work. One day she argues with her mother and later that evening she discovers she had been murdered. Sad and full of regrets, she wonders around and ends up in an freak car accident which takes her to 1987. There is a serial killer creating mayhem in the peaceful village and with the driver of the car, they have to stop him.

One episode was enough to see that the plot lifts heavily from both the movie and the drama. They mixed the two plots and frankly it works rather well. The plot manages to remain logical, because it stays mainly in the past so we really do not know if the repercussions on the future are more than cosmetic as it was shown in the last episode. Butterfly effect was not their priority. But characters' original unhappy and miserable lives were changed for the better. Most of plot points and characters were very predictable/cliché so I was a bit wary of the outcome. They managed to surprise me a little bit. Some of those plot points (plagiarism) were solved in a blink-and-you-miss-it rapid way.

The romance is not romancing very much though: apparently they fall in love and live happily ever after but their actions are not very obvious. They never touch each other's hands before the last minutes of the last episode. Zero kisses! Don't get me wrong, I do not need kisses and stuff in romance but this kind of restraint is so anti-climatic. The romance does not really change their characters which are emotionally stunted. It reminded me very much of Summer Strike: same kind of story without time travel!

The drama is a very very slow slow-burn mystery. I love slow burn dramas. But this one is on another level: so much so it took me over a week to go through the first half. I kept falling asleep. I almost dropped it because I was annoyed by the tropes and the predictability. But it got better in the second half. The plot was often very interesting and gripping but there are many many very long scene between the main leads, standing facing each other, five meters apart and talking with the speed of a snail (it felt like one word a minute).
Those scenes were rather pretty! Well done for the cinematography: fields, water, moonlit scenery. It was pretty to watch. The sets and costumes for 1987 were spot on. The hair was awful. It brought back some unpleasant memories! LOL

I have to congratulate the casting director: they managed to cast actors who look so much alike to play the same character in different time periods. It was uncanny! Of the rest, Kim Dong Woo was his usual self. I guess he is typecast always playing these stoic, cold, taciturn characters, men of few words. Well, if the shoe fits....Lee Ji Hyun, the actress playing Yoon YOung's mother in 2021 looks like a grandmother and she is the only miscast!

Time travel is notoriously difficult to write but they did it here masterfully. It is a good albeit a slow watch.