The sound design was key in building the story and creating tension as the film progresses. Apart from the dialogue nearly all the sound was recreated using foley and SFX to build each scene. The sound brief was to create a soundscape that’s as real as possible and not stylised in any way, making each shot feel as though you are there in reality. In order to achieve this it required thinking about the sound outside each shot and creating each scene by imagining what you could hear in each moment. It was important to keep the mix very dynamic in order to give certain scenes the impact they needed.