A characteristic of film noir  is never making you think there will be a happy ending. This movie has a representation of this. Father and son seem to have beaten the impossible. They make it to the aunts beach house, and Mike's son is playing with the dog on the beach. Mike is inside looking through the window Thinking that he might have won. Then he gets shot twice by the creeper with the camera. All while the son in in view because of the camera angle. This is a classic sign of film noir. Film noir has many more like constant smoking and fedora hats and a depressing settings with hidden meanings. Smoking was very prevalent in this movie and it is used to enhance the vibe they are trying to give off. Their trying to make you think of the "underworld" by having them smoke. Now a days when someone is smoking people generally think that they are shady. The fashion was also very important for the setting of this movie. If they are trying to nail a certain era in time they can't have them wearing cloths from 2013 if its about 1931. Setting is used critically in this movie to create a feeling to enhance the story. The use of rain is a good example. When Michel sneaks into his dads car to see what he does it is raining to symbolize. It symbolizes that his innocence was being washing away when he saw his dad kill those people. This film is a hybrid between classic writing and film noir. The reason is toward the end while Michel is on the beach right before his dad gets shot he seems happy. That misdirection makes it not film noir but it has other elements that would make it fit the category. Which is the reason I am choosing to call it a hybrid.