Ruk Mai Leum (2019)

Both are incredibly similar in terms of plot: a rich male lead whose life is threatened ends up at the place of a poor female lead who nurses him back to health. They fall for each other but he has to go back to his life and circumstances etc.

I was shocked Ruk Mai Leum wasn't a remake of STLDFM.

Both of these romance lakorns focus on men who suffer from amnesia falling in love with women that they shouldn't be falling in love with.