Prince of Darkness (1987)
Graduate students are confronted with pure evil when they go to study a container of strange ooze discovered in the basement of an abandoned church. The ooze is released and all hell, quite literally, breaks loose within the church. Some of the students are turned into zombies while others receive warnings from the future sent in the form of hazy dreams. The warnings tell of the rise of Satan and the ensuing destruction of humanity. The students must stop the evil from being released, even at the cost of their lives and souls.