Have you ever read Agatha Christie's 'And then there are none'? If you have don't bother watching this movie.

The actors tried but the material they had to work with is poor, the writing is poor, the plot is childish and really was this anything but a tax loss?

There was no 'mystery' it was obvious who had done it from the start (the classic who is the least likely). A tedious mind numbing film, watching it reminded me of Michael Caine's 'Jaws the revenge' quote "I have never seen it, but by all accounts it is terrible. However, I have seen the house that it built, and it is terrific."

I hope the actors did well out of it and Rian Johnson redirects their talents into other areas.