Patricia Rozema’s loose adaptation of Jean Hegland’s 1998 novel—the original evoking Margaret Atwood’s The Handmaid’s Tale with a touch of Orwell—is set in the forest of Northern California (in the unspecified near-future), where the siblings (in their late teens and early 20s, respectively) are living with their widowed father (Callum Keith Rennie) in a well-appointed country cabin.