After 16-year-old Alice drowns on a family outing, her parents and brother experience unexplained sounds and discover secrets that Alice had buried.

Shot as a very believable documentary, “Lake Mungo” is a subtle exploration of grief, belief, secrets, time, and memory. It spools out its revelations slowly, with twists that force you to reconsider how you’ve been interpreting the story. Right through the credits there are misdirections and revelations that make this a quietly creepy and disturbing film.