Sandcastle

En is an 18-year-old who has lost his father to cancer years ago. While waiting for his enlistment into the army, he has to put up at his grandparents' place as his mother goes on a holiday with a new man in her life. As En soon finds out at his grandparents' place, life cannot be put on hold indefinitely. He gets more and more involved with his grandparents' lives – the routines his grandfather builds around his grandmother's dementia and which his grandfather fears are no longer sufficient to support her worsening condition. At his grandparents' place, En also discovers that there may be more to his father's student activist past than his mother lets on and is determined to get to the bottom of the matter.