
Once in a Summer
10 days are forever.
An assistant to a TV producer, eager to stay off his bad side, promises to convince her former professor, a famous but reclusive academic, to appear on their show, which helps locate long-lost persons. Who does grey-haired Professor Yun Suk-young want to see again more than anything? The answer to that question lies decades in the past.
Where to Watch
Top Cast

Lee Byung-hun
Yun Suk-young

Soo Ae
Seo Jung-in

Lee Se-eun
Lee Su-jin

Lee Hae-eun
Bok-ja

Choi Deok-moon
Suk-young's Senior

Jeong Seok-yong
Mr. Kim
Na Ki-soo
Suk-young's Father

Oh Dal-su
Nam Gyun-soo

Yoo Hai-jin
PD Kim

Kim Joong-ki
Senior
Park Nam-hee
Branch School Principal

Park Chae-ik
Literary Society Member

Kim Do-kyoon
Literary Society Member

Son In-yong
Literary Society Member

Kim Jeong-ha
Old Woman

Kim Kyeong-ran
Old Woman
Choi Ji-yeon
Old Woman

Park Chan-guk
Detective

Choi Eun-suk
Plainclothes Detective
Song Jeong-woo
PD
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