Actually, Wicker Man is more of a comedy (don't watch the 2006 remake).
An obnoxiously fanatic protestant fundamentalist scottish police man goes to an island off mainland Britain to investigate a murder.
The island turns out to be inhabited by one of Britain's few pagan communities that managed to evade the long fingers of Christianity.
You gotta see it.
You'd make a good eccentric high priest of the island, just as in the movie!