White Night (Korean: 백야행: 하얀 어둠 속을 걷다; RR: Baek-yahaeng: Ha-yan Eodum Sok-eul Geotda; lit.

The film starts when Kim Si-hoo, a pawnbroker, is found dead in a remote town in a derelict building, the police are divided whether it was a murder or a suicide.

The woman's daughter Lee Ji-ah later changes her name to Yoo Mi-ho when she moves in with her aunt, where she grows a flower garden.

[4] Actress Son Ye-jin was Park's first and only choice for the role of Yoo Mi-ho after having attended high school with her in Daegu.

"[3] Though Son was extremely flattered and called the project "her destiny," she didn't find the role easy because she was unaccustomed to playing a character so dark and sinister, and "wanted to make her look like someone deserving sympathy."

For Son, the most difficult scene to film was the one in which her character appears nude and comforts her fiance's daughter after she is sexually assaulted by Yo-han.

[7][8] Paul Quinn of Hangul Celluloid gave the film a generally positive review, finding it "difficult to believe that this is Park Shin-woo's first directorial full-length feature."

He described the imagery as "sumptuously beautiful (even when horrific scenes are being played onscreen) with near-perfect pacing throughout and, though White Night is a long film (135 minutes in duration), at no point does the story either drag or rush in any respect.

He called Park's direction "elegant and impressively stylish in the modern noir manner," and singled out Son's "brave, multi-layered performance that effectively provides the film with its touching, yet twisted emotional core."

He concluded his review by declaring White Night "one of the best Korean films of 2009, and certainly one of the few mystery thrillers not to patronize its audience with easy answers or comfortable resolutions.