"In the Tall Grass" is a horror novella written by Stephen King and his son, Joe Hill. The story follows siblings Becky and Cal who, while traveling, hear a child's cry for help from a field of tall grass. As they venture in to assist, they quickly become disoriented and trapped in the grass, facing a malevolent force that manipulates time and space. The novella explores themes of fear, isolation, and the unknown. As the characters struggle to escape, they encounter other lost souls, revealing the grass's sinister nature. The narrative builds tension through its eerie atmosphere and the characters' desperate attempts to find a way out.