1408 (2007) on Netflix

Author Mike Enslin specializes in paranormal investigations writing books along the line of the 10 best haunted hotels in America and so on. He receives an anonymous postcard in the mail telling him not to stay in room 1408 at the Dolphin Hotel in New York City. His attempts to make a reservation there are unsuccessful and he is told that it isn't available - ever. His research reveals that there have been a number of very strange deaths in that room dating as far back as the hotel's opening 95 years ago. The hotel is forced to accept him but the manager, Gerald Olin, begs him not to stay there. In his opinion, the room is evil and no one has ever been able to stay in there for more than an hour. Enslin scoffs at the warning and is soon in the room - from which he soon becomes desperate to leave.