The document discusses conventions commonly found in thriller movies that the author plans to incorporate into the opening sequence of their horror thriller film. These include:
1) A large, old house where most of the action and horrors will take place, troubling the main protagonists.
2) The use of blood, which creates suspense by signifying danger and violence.
3) Dangerous weapons like knives that emphasize threats and build suspense by their potential to hurt someone.
4) Eliciting emotions of fear and sympathy from the audience by relating them to the doomed situations of the characters.
5) Clearly establishing an antagonist that troubles the protagonist throughout the film.