In Ha (Ji Chang Wook) is the son of a talented pianist who dreams of becoming the best pianist and take over the family’s musical instrument business. But when his father brings home an illegitimate son, Ji Ho (Joo Ji Hoon), also a piano prodigy, and declares that he will be the heir to the family business, In Ha’s world is shattered. Then a fire in their home robs In Ha of a finger, crippling his musical dreams. Only one son can be the best and have it all – the company, the career and the girl. Which will it be?