There are a handful of horror movies that could qualify as the first slasher movie, but it's not so cut and dry.

Alfred Hitchcock had already become the master of suspense by the time he released "Psycho" in 1960. But the film's chilling shower scene would make him a legend for generations to come.

When people talk about the movie, American Psycho, they seem to all want to focus on the ending. But what if I told you I thought the most interesting scene in the film actually happens in Act One?