The real mystery of this very special episode is why Hercule "mal de mer" Poirot would choose to spend his summer holiday in a boat on the Mediterranean, but luckily for us he does, along with a cast of characters running the full spectrum of companionability from delightful to despicable.... So come soak in the sun with us as we explore Poirot's most extreme--and perhaps, ironically, darkest--solution of extralegal justice among his many, many cases.