Cha Se Eum used to be a violinist, but now she is a conductor. She has pursued her career with courage and passion. She now finds herself in a position that others envy. What others don’t know is that Cha Se Eum carries a secret. That secret will turn her life upside down. Meanwhile, mysterious incidents are occurring within her orchestra. Cha Se Eum investigates these incidents and draws closer to the truth surrounding her.