1) The film Se7en stars Brad Pitt and Morgan Freeman as two detectives, one who is older and more experienced while the other is younger.
2) The opening scenes establish Freeman's character as neat and precise through point-of-view shots showing him preparing his equipment, while also revealing contrasting styles between the two detectives.
3) Shots of a crime scene then contrast with the opening's calm saturation to set up the film as a thriller, while other technical elements like costumes, sounds and editing further develop the characters and tone of suspense.