Se7en

The opening scenes of the film 'Se7en' set the mood of a thriller by not giving away too much information but just enough to get the idea of the film. The music is spooky and mysterious to add to the effect of something not quite right. The opening suggests the idea of the character being obsessive by writting in books but also psychopathic by removing his fingerprints. This leads the audience to feel disconneced from the character but know he is probably not on the right side of the law. The titles are also in a scribbley font implying that they are handwritten(like the writing they see in the books). They also move on the screen drawing your attention to them but also making you slighty dizzy and conscious that something about the character isn't normal. There are no faces shown just close ups of what the person is doing, giving away a lot of detail but still keeping the mystery as the audience don't know how the clues are relevant yet.
Se7en sets the mood of thriller by not giving away everything but little clues and enough mystery and tension to keep the audience wanting to know more.