"Shadows Under the Eaves" tells the story of Ethan, who returns to his hometown to visit relatives and accidentally uncovers the truth about his parents' death many years ago. After Ethan returns home, he finds that the villagers are acting strangely towards him, and there are rumors that his old family house is haunted. During the investigation, he discovers many suspicious clues, such as rat poison packaging in the old house and Aunt Carol's strange behavior, which gradually makes him suspect that Aunt Carol is related to his parents' death. As the investigation deepens, Alice appears, manipulating a fool to play a ghost, inducing Ethan to seek the truth. In the end, Aunt Carol reveals the truth that she sent Alice away to protect her, and the truth about the death of Ethan's parents and Uncle Frank. Alice also resolves her inner conflicts and reconciles with Aunt Carol, Ethan and Aunt Carol eliminate their estrangement, and everyone's life welcomes a new beginning.
