Question: Who directed the 2010 mystery erotic film that Kim Ji-hoon appeared in?

Context paragraphs:
Dead Awake (2010 film): Dead Awake is a 2010 mystery film starring Nick Stahl, Rose McGowan, and Amy Smart.  The film was previously titled "Dylan's Wake".

Dori Hillestad Butler: Dori Hillestad Butler (born August 26, 1965) is an American author of children's books.  She has written more than 40 children's books, as well as magazine stories, plays and educational materials.  She is known particularly for "The Truth about Truman School", a 2008 young adult title focusing on the subject of cyber bullying, and for My Mom's Having a Baby (illustrated by Carol Thompson), which in 2011 appeared on the American Library Association's list of most challenged books for its portrayal of conception and childbirth.  Her 2010 mystery title, "Buddy Files: Case of the Last Boy", won the 2011 Edgar Award for the best juvenile mystery published in 2010.  Prior to becoming a children's author, Butler worked for three years as a page at a library.  She is married with two sons.  The family lives in Kirkland, Washington.

Kim Sung-soo (actor): Kim Sung-soo (born May 23, 1973) is a South Korean actor and television host.  After beginning his career as a fashion model, Kim made his acting debut in the tokusatsu series "Vectorman" and the erotic film "The Sweet Sex and Love".  He has since appeared in the movies "The Red Shoes" and "", and several television series, including "Full House", "My Precious You", "More Charming by the Day" and "My Lover, Madame Butterfly".  In 2009 he made his stage debut in the play "Mom, Do You Want to Go on a Trip?"

Joseon X-Files: Joseon X-Files () is a 2010 South Korean television series starring Kim Ji-hoon, Im Jung-eun, Kim Kap-soo and Jo Hee-bong.  It aired on tvN from August 20 to October 29, 2010 on Fridays at 24:00 for 12 episodes.

I Want to See Your Parents' Face: I Want to See Your Parents' Face is an upcoming South Korean film directed by Kim Ji-hoon and based on a play by Seigo Hitazawa.

Natalie (film): Natalie (Hangul: 나탈리 ; RR: "Natalri "; MR: "Nat‘alli " ) is a 2010 South Korean romance mystery erotic film co-written, directed and produced by Ju Kyung-jung.  It was the first Korean 3D film.

Kim Ji-hoon (actor born 1981): Kim Ji-hoon (born May 9, 1981) is a South Korean actor.  He is best known for his romantic comedies on television such as "The Golden Age of Daughters-in-Law" (2007), "Love Marriage" (also known as "Matchmaker's Lover", 2008), "Stars Falling from the Sky" (also known as "Wish Upon a Star", 2010), and "Flower Boys Next Door" (2012).  In 2010, he also appeared in the film "Natalie", and cable mystery series "Joseon X-Files".

The Tower (2012 South Korean film): The Tower (; "Tower") is a 2012 South Korean disaster thriller film about a fire that breaks out in a luxury skyscraper in central Seoul on Christmas Eve.  The film is directed by Kim Ji-hoon, and stars Sol Kyung-gu, Kim Sang-kyung and Son Ye-jin in the lead roles.  It was released in theaters on Christmas Day, December 25, 2012.

Kim Ji-hoon (director): Kim Ji-hoon (born 1971), also spelled Kim Ji-hun, is a South Korean film director.

Sector 7 (film): Sector 7 (Korean: 7광구 ) is a 2011 South Korean science fiction action 3D film directed by Kim Ji-hoon who previously made "May 18".

Supporting paragraphs: Kim Ji-hoon (actor born 1981) Natalie (film)
Answer: Ju Kyung-jung