@CarlaSen
Thanks for the post.
Please be aware that Recently Viewed and Featured sections of The Roku Channel are generated content based on what you have watched within the channel. Have you tried watching other content as of late to see if the horror movie gets phased out/replaced with other content related to the new movies/shows you have watched recently?
Please keep us posted what you find out and we will be able to assist you further.
Thanks,
Danny
Danny R.
Roku Community Moderator