I’m trying to remember a movie that as far as I remember was a Thriller about a couple living in an isolated house near the sea.

The critical thing I remember is that the man is building some sort of wooden house/look out point, they get a visitor on a rowing boat and it all turns to hell and the one guy dies by being empaled on this wooden building.

Had to have been produced in the 90’s.

Any one have any thoughts or clues as to what movie this could be?

Thanks