A mother had to give up her son for adoption before, and after 40 years of separation, her son returns home from Minnesota USA and decides to live with her because his mother is dying soon. The problem is that she only speaks Korean, while her son only speaks English.
They want to get compensated for lost years so much that they often go back 40 years when she had to give up her 3-year-old son for adoption. The middle-aged son acts like a baby for her, while his mother tries to take care of everything about him.
He doesn't know how much longer she could live, but until his mother stays with him, he has many things to do for her.