I remember a horror movie, I’m pretty sure it was from the ’00s but it could have been from the’ 90s. It was set in an insane asylum, sanitarium, or hospital of some sort, and the building was tall with rounded edges built into the side of a cliff next to the sea, and I’m pretty sure it was white. The only other thing I remember about it is that a handful of people go inside and that the building locks itself in the evening and unlocks itself in the morning.