"Narvel" (Joel Edgerton) is the head gardener on the estate of the wealthy, slightly eccentric, "Norma" (Sigourney Weaver) with both being enormously proud of their horticultural expertise and creations. One afternoon, she entertains him to tea and explains that her great-neice "Maya" (Quintessa Swindell) will be joining his team as an apprentice. The women have never met, nor does "Norma" know much about her - but he agrees and she duly arrives. Initially, we think she's a typically recalcitrant teenager with ripped jeans and permanently glued to her earphones. It becomes quite clear,…