This trailer for the film Shutter Island establishes the setting of a mental hospital for the criminally insane on a remote island. Sound and editing techniques are used to build mystery, tension, and an emotional connection between the audience and the main character. Non-diegetic sounds of bells and screams convey the impression of death and danger within the asylum. Close-ups of items like guns being surrendered leave the character and audience feeling vulnerable. The director and stars are mentioned to attract audience interest, while minimal credits and an ambiguous release month increase anticipation. Dark cinematography reinforces the dull and disturbing atmosphere of the hospital.