The Vanished

35 years ago, a group of young school children disappeared in the Japanese woods. In present-day Japan, a lazy young reporter is tasked to write a story on a child who is found dead with gory injuries and inexplicable missing organs. Suddenly, the child rises from the dead and takes the journalist on a journey into the woods to unravel a decades-old mystery of what happened to these missing children.
With the help of a beautiful young city office clerk, he soon discovers that the children are undead and have not aged in the 35 years since their disappearance, haunting their families who are intent on ending this cycle of violence.
(Source: AsianWiki)
~~ Adapted from the novel "Ame no Machi" (雨の町) included in the short story collection "Shishuki" (死愁記) by Kikuchi Hideyuki (菊地秀行).