The mood portrayed in the mood board is much more obviously portraying its theme but in the opener the idea of a murder taking place is much harder to get until you notice details, some will be made much more obvious than others. The mood is supposed to be eerie and almost unsettling, shifting from curiousness to confusion to mistrust and finally unsettling as the viewer continues. The film (opener) is loosely based on a true crime story about a man who murdered his entire family, left everything and set everything up perfectly to buy him as much time as he runs away escaping his life to start over. Moodboard | Quickly build beautiful moodboards and easily share the results (gomoodboard.com)