The Lighthouse (2019) is a psychological horror film directed by Robert Eggers. Set in the late 19th century, the film follows two lighthouse keepers, Thomas Wake (Willem Dafoe) and Ephraim Winslow (Robert Pattinson), as they battle
From Wikipedia
A lighthouse is a tower, building, or other type of physical structure designed to emit light from a system of lamps and lenses and to serve as a beacon for navigational aid for maritime pilots at sea or on inland waterways.