Knock Knock Loving You (Traditional Chinese: 敲敲愛上你, Pinyin: Qiao Qiao Ai Shang Ni), also known as Quietly Falling in Love with You, is a 2009 romance Taiwanese drama starring Dylan Kuo, Maggie Wu, and Ming Dao.

The drama is based on a 2005 Taiwanese romance novel Treasure In The Side (珠玉在側) by Taiwan author Xi Juan 席絹.

The drama began airing on CTS and GTV on April 12, 2009 on Sunday at 22:00 PM.

Cheng Xue Ge is a talented violinist who has lived comfortably all his life, and because of his father's wealth he is able to do what he wants which is to play the violin.

To learn how to survive in the business world he asks Zhi Ang for help in teaching him how to be ruthless, but later finds out her cold demeanor is a wall she had built to protect herself.