From Darkness Comes · the Horror Box Set

When Henry was a child, something terrible happened in the woods behind his home, something so shocking he could only express his grief by drawing pictures of what he had witnessed. Eventually Henry's mind blocked out the bad memories, but he continued to draw, often at night by the light of the moon.
Twenty years later, Henry makes his living by painting his disturbing works of art. He loves his wife and his son and life couldn't be better... except there's something not quite right about the old stone farmhouse his family now calls home. There's something strange living in the cramped cellar, in the maze of pipes that feed the ancient steam boiler.