movie:1408

Yesterday, I saw a movie "1408". Do you know? I think it's horror. Is this correct? It was nice.
Michel is an author of horror novels. He never has seen ghost. So he is always looking for hotels or motels where ghosts appear and stay to see ghosts.
One day he get a mail. There are words "Do not enter 1408." in the mail. He is attracted by the mail. Then he decid to stay that room No.1408. But chief manager tell him a story that 56 people who entered the room died within an hour. But he get interest more instead.
He stay the room, then he regret staying the room. What is his regret? You should see 1408 to know his regret. I recommend you. :)