Ice Girl (2005)

Original title: 그녀가 돌아왔다

Before the marriage to fiance, a young lady Kim suddenly suffered a heart attack. She was moved to her father's hospital, but her father Dr. Kim was not able to save her. So he took her body and froze her until he could find a way to save her. And 25 years later, in 2005, she is revived. But she cannot remember her fiance... and she falls in love with his son.