Oldboy
"Ask not why you were imprisoned. Ask why you were set free."
A man has only three and a half days and limited resources to discover why he was imprisoned in a nondescript room for 20 years without any explanation.
1999
1973
1994
1997
2007
1975
1994
1997
1998
1982
2001
1994
2005
1974
1990
2003
1997
2007
2006
2002