The film centers on a girl named “Milla” (Eliza Scanlen), who is seriously ill, and her relationship with an older guy called "Moses" (Toby Wallace), much to the dismay of her parents, Ben Mendelssohn and Essie Davis. She’s drawn to him, but their worries seem justified when he's discovered attempting to steal medication from them. However, it soon becomes clear that “Milla’s” carefully managed life of medicine isn’t doing anyone any favors. Her father, who is a psychiatrist, suggests "Moses" move in and offers to provide the necessary prescriptions. The mother also uses medication for her own issues, so they all navigate a delicate landscape of psychological needs and chemical balances, and events unfold with a sense of what's coming but in a way that feels genuine and occasionally touching. A handheld camera style adds to an intimate feel as the characters attempt to go about their lives while “Milla” starts chemotherapy and "Moses" challenges everyone’s beliefs, even his own. There are some lighter moments away from the main plot; the mother is a musician, and “Milla” has been learning the violin with family friend “Gidon” (Eugene Gilfedder). Their new neighbor repeatedly calls out for "Henry," which is both her father's name and that of their frequently missing dog. Everyone offers a different viewpoint on what’s happening, and this is what makes it compelling—each perspective can be seen as right or wrong, and all are subject to change because the ultimate goal is simply for “Milla” to experience some happiness. It has its humorous parts too, sometimes dark, sometimes simple, and not just the younger characters have moments of instability throughout the story. Ultimately, it’s an observation—occasionally feeling a bit forced—but largely an absorbing family narrative about connection, isolation, and yes, even happiness.

Source on TMDB