Initial idea for opening sequence of film

Our idea is to have the genre of horror, but we do not know entire what the story is yet, but we do know we want it to be interesting, and to use some sort of unique and strange clothing and props, we want our opening sequence to make the audience want to watch the rest of the film, and for the opening sequence to not give too much away about the film but give the audience a clear idea of what the film is about.