Kate and Harriet are best friends, growing up together on an isolated Australian cape in the 1880’s. As daughters of the lighthouse keepers, the two girls share everything until a fisherman, McPhail, arrives in their small community. When Kate witnesses the desire that flares between him and Harriet, she is torn by her feelings of envy and longing. But one moment in McPhail’s hut will change the course of their lives forever.