Bong Joon Ho	...	(Director)
Bong Joon Ho, Eun-kyo Park	...	(Writer)
Hye-ja Kim	...	Mother
Won Bin	...	Yoon Do-joon
Goo Jin	...	Jin-tae
Je-mun Yun	...	Je-moon
Mi-seon Jeon	...	Mi-sun
Sae-byeok Song	...	Sepaktakraw Detective (as Sae-beauk Song)
Byoung-Soon Kim	...	Group Leader
Woo-hee Chun	...	Mi-na
Gin-goo Kim	...	Ah-jeong's Grandma
Moo-yeong Yeo	...	Lawyer Kong Seok-ho (as Ou-hyung Yum)
Young-Suck Lee	...	Elder at Junk Shop
Hee-ra Mun	...	Moon Ah-jeong (as Hee-ra Moon)
Mi-do Lee	...	Hyung-teo
Young-ki Jung	...	Kkang-ma
Gyu-pil Go	...	Ddung-ddung (as Kyu-phill Ko)
Kim Hye Ja	...
Kim Hye-ja	...
Bin Won	...	Yoon Do-joon
Jin Gu	...
Ku Jin	...	Jin-tae
Jin Ku	...
Yoon Jae-Moon	...
Bong Joon Ho	...
Mi-sun Jun	...	Mi-sun

Summary: A mother lives quietly with her twenty-eight-year-old son, Do-joon, providing herbs and acupuncture to neighbors. One day, a girl is brutally murdered, and Do-joon is charged with the killing. Now, it's his mother's call whether to prove him innocent or to leave him imprisoned.