One Day Suddenly

The drama is about two women, Oh Yoo Ran and Go Eun Hye, who are born on the same day. They grow up in different social classes, but they remain best friends. Eun Hye is married to Dr. Kang Shin Hyeong. Yoo Ran was so envious of what Eun Hye has that she tried to make it her own and trapped Shin Hyeong into having an affair with her. The plot mixes elements of love, heartbreak, cheating, betrayal, and forgiveness to create an exciting story.