“Secret ” is a melodrama about a “fatal romance” between a man who lost his girlfriend in an accident, and falls in love with the woman responsible for her death. It is the story about a man who doesn’t believe in love and a woman who believes in love, but gets betrayed by love. Min Hyuk is a rich guy who has everything but a good personality, and burns with revenge after he found out his lover was killed in a hit-and-run accident. Yoo Jung is a woman who takes blame for those accident. She is a woman who refuses to give up on life even though she′s been thrown into despair and was sent to prison in behalf of her boyfriend, who actually committed the hit-and-run accident.

Meanwhile, Shin Se Yeon (Lee Da Hee) is the one with an unrequited love. She’s described as “thirsty for love,” and she’ll be a character in pain because she can’t have the one person she wants.