First part - the couple, he was so controlling and annoying and she was no better. The boat nonsense with the captain - well, that was frankly ridiculous that a supposed luxury boat would have had someone like that init. Not black comedy, just black, and needed editing down by about 1 hour. No likeable characters so couldn't get 2 figs if the survived or not third part - so weird, no ending and not satisfactory in any sense.