Psycho was about Marion Crane and she stole a lot of money and try to run way with it then the ended of at a motel run by a guy named Norman bates  and he liked her but his mother didn't killed her because she is a psycho. Norman cover up the murder of Marion. i didn't expect her to die because she is the main character she suppose to be the focus of movie. Norman seem mentally ill because of what his mother do, killing and he have to cover up it. it was worried how Norman was the one who did all that killing a he  was  be able to do it that and hidden it.