1. The film uses techniques like slow motion, time freeze, and color filters to draw attention to important symbolic elements and create a sense of confusion and mystery for the audience. 2. The story has a linear narrative structure where a secret is gradually revealed until the final twist ending. It starts with Amy being fostered by a seemingly caring single mother, but strange events suggest something more sinister. 3. Various film theories help analyze the narrative, including a twist revealed through Todorov's model, a false hero in the mother character, and initially confusing representations of good and evil addressed through Levi-Strauss and Barthes' theories.