This document discusses semantic and syntactic elements commonly used in psychological thriller trailers. Semantically, they often feature limited lighting in small enclosed spaces to heighten fear. Trailers may introduce the antagonist to set expectations. Locations like cabins isolated in the woods are also frequently used. Voiceovers are sometimes employed to enhance suspense. Syntactically, the narrative must be compelling and tie into the horror elements. One common plot device is possession that can't be seen by other characters. Overall, thrillers aim to intrigue audiences with just enough information while leaving them wanting more.