Keys to the Heart

Off-tune brothers unite!

An older brother is a washed-up boxer. His younger brother is a genius pianist with physical disability. The brothers make up through their mother who is full of stories of her past.

Drama Comedy

Lee Byung-hun

(Kim Jo-ha)

Youn Yuh-jung

(In-sook)

Park Jeong-min

(Jin-tae)

Han Ji-min

(Ga-yool)

Kim Sung-ryung

(Ms. Hong)

Choi Ri

(Soo-jung)

Bek Hyun-jin

(Dong-soo)

Hwang Seok-jeong

(Chief Kang)

Park Ji-yeon

(Yougn In-sook)

Moon Sook

(Bok-ja)

Oh Hye-won

(Bok-ja's Guard)

Lee Joo-young

(Eun-ha)

Ahn Seong-bong

(Sky Lounge Manager)

Park Ji-hoon

(Tae-gu)

Park Sang-hoon

(Young Jo-ha)

Yoon Yeong-gyun

(Policeman)

Son Woo-hyuk

(Eun-ha's Boyfriend)

Yang Jun-seok

(Big High School Student)

Kim Sang-wook

Jung Yun-ha

(Bok-ja's Guard)

Jo Kwan-woo

(Moon Sung-gi)

Yoon Young-kyun

(Police substation officer)