How planning helped me understand social groups representation

First of all the two characters used in this film are girls where straght away sets the mood of the film because the person watching the film will automataclly be more engaged becuase he sees two vulnerable and weak girls ready to go out for a party. By using 2 girls males would be more intrested into watching the film plus by the two girls drinking alcohol it makes them even more vulnerable and this straght away gives us the hint that something is going to happen to them and they wont be able to protect themself. The story relates to the phycological sub-genre because you don't know what or who the threat is and why this threat is killing people in the general public.