The Stepfather (1987)

This is the original opening for the film 'The Stepfather'. At the start we are curious to see what the man is doing as the non-diegetic music is constantly building suspense. The detail of what as happened isn't revealed, however it's safe to assume that he has murdered his wife and stepchildren. We can assume this because the character isn't fazed by the dead bodies around him as well as the fact he was washing blood off of his hands. Something which I find to be rather creepy is how much the mans identity changed within a small period of time. He comes across as psychopathic as whatever has happened was obviously planned, and not accidental in the slightest.