Can't fault the acting or the production values. This was filmed in Australia, on an island in Queensland.
The premise should be more interesting than the way this film presents it. Poor directing? Perhaps. As I said, the acting is good and believable. A couple of plot holes that I couldn't wrap my head around.
The film was based on a short story, which I'm told is a very good story. Clearly the movie got something very wrong.
A few days after I watched it, and the movie is unmemorable.