Sin of a Family

Sin of a Family () is 2011 South Korean crime film, produced by Shin Hyun-joon, about a detective who investigates the circumstances of a young autistic boy's death.
Plot.
After a body was found at the lake, the police identifies it as Jeong Min-hwan, a young autistic boy, who went missing two months earlier.
While struggling in his troubled relationship with his son Gyeong-su, Detective Jo Chang-shik is assigned to the case. As part of the investigation, he visits the victim's family.
When he eventually unearths their family secrets, he suspects the father may be responsible for Min-hwan's death.
Release.
"Sin of a Family" premiered at the 2010 Puchon Fantastic Film Festival.