In the 1930s, in an isolated and beautiful corner of southern Tasmania, a young wife arrives at her husband's secluded property, Arcadia. Stella, an artist, falls in love with Arcadia's wild, ancient forest. But when an unknown predator strikes, she is saved by an unusual protector. Two generations later, Stella's granddaughter, Sally, and her best friend, Jessica, stumble over Stella's secret life in the forest and find themselves threatened in turn. What starts as a girls' adventurous road trip becomes a hunt for the story of the past, to solve the present, and save their future.