Be with You (2018)

"This film is adapted from the novel "Meet in the Rainy Season" by Ichikawa Takuji, starring So Ji-sub and Son Ye-jin. It tells the story of a man (played by So Ji-sub) whose wife Soo-ah (played by Son Ye-jin) told him before her death that she would come back in the next rainy season. Sure enough, when the rainy season came, my wife arrived as promised. But the strange thing is that my wife seems to have forgotten..."