The document discusses themes that are common in psychological thriller films, including guilt, mystery, imagination, and suspense. It provides an example of how these themes will be used in the film being produced. Specifically, the film will portray the main character Richard discovering that the girl Eve he has been interacting with is actually a ghost, representing the themes of imagination and guilt. It then provides two example films, Shutter Island and Inception, that effectively combine themes of guilt and ambiguous realities.