Deep within the lush Tasmanian rainforest is the remote town of Vanishing Falls, where landowner Jack Lily, his wife Celia, and their children live in the sprawling mansion, Calendar House. When Celia disappears, the police are stumped, but Joelle Smithton is putting clues together. Sometimes considered simple-minded, Joelle sees far more than most people realize, and remembers details that others cast away. She knows that Jack Lily has connections to unsavory local characters, and Joelle's own husband is acting suspiciously. As deep secrets become clear to her, Joelle must summon the courage to reveal what really happened to Celia, even if it means exposing her own past.