Beast of the Yellow Night (1971)

Satan incarnates a man in the body of Phillip Rogers, an American businessman living in Manila. Phillip’s wife Julia and brother Earl notice a sudden change in personality, especially as Phillip pushes Julia away from him into the arms of Earl. At the same time, Phillip keeps turning into a wild beast that runs out into the night where he kills random people. This is the 4th film that actor John Ashley and director Eddie Romero worked on together and together they keep creating these horror exploitation efforts that are filmed in the Philippines and it gives viewers exactly what they would expect.