One day, in the commotion of a Paris train station, a young man from a modest family begins to play a public piano. The world seems to stop. Especially for music academy director Pierre Geithner, who recognizes Matthieu's exceptional gift. But Matt brushes him aside. Since the death of his neighbor and mentor, old Mr. Jacques, Matt's talent has gone neglected. Music has become his secret world. Until the day he gets thrown in jail for repeat petty theft and has no one to turn to but Pierre, who gets his prison sentence converted to public work at the academy. Hoping to transform Matt into the prize-winning concert pianist he needs to save its reputation, he assigns him to "The Countess," the school's most brilliant and ruthless professor, to prepare him for one of the nation's most prestigious piano competitions. But untrained, undisciplined and racked with self-doubt, Matt struggles and falters, frustrated to find out that talent just isn't enough. Pierre has bet everything on Matt - will it pay off?

★ 英法雙聲帶 奧斯卡最佳女主角提名克莉絲汀史考特湯瑪斯 化身魔鬼鋼琴教師 角色語錄：『要成材就是要挨罵！』

★ 凱薩獎男星藍柏威爾森 賭上終身教職只為栽培新秀

   角色語錄：『每個人都可以是別人的伯樂！』

★ 法國耀眼新星美少年 朱爾斯班切崔特 挑戰法國版《進擊的鼓手》天才樂手角色 角色語錄：「我真的辦得到嗎？」

★ 奧斯卡金像獎最佳影片《大藝術家》製作團隊打造 笑淚交織的尋夢之旅

年輕樂手馬提爾，在巴黎火車站演奏鋼琴，悠揚的樂音吸引了音樂學院總監皮耶的注意。皮耶知道他找到了天才鋼琴家，急忙把馬提爾帶回學校，並指定校內最優秀又最嚴格的音樂老師「女爵士」，擔任馬提爾的私人家教，希望馬提爾能在國際最具聲望的鋼琴比賽中脫穎而出。

沒有受過專業訓練、出身貧窮、對自己充滿懷疑的馬提爾單靠天賦與短暫努力就能成功嗎？皮耶賭上了一切要栽培馬提爾，但真的能如願讓天才樂手一戰成名嗎？