You're on your honeymoon at an exclusive couples-only resort. You receive a note warning you
to 'Beware of the couple at the table nearest to yours'. At dinner that night five other
couples are sitting close by but none of their tables is any nearer or further away than any
of the others. It's almost as if someone has set the scene in order to make the warning note
meaningless. Why would anyone do that? You have no idea. You also don't know that you're about
to be murdered or that once you're dead all the evidence will suggest that no one there that
night could possibly have committed the crime. So who might be trying to warn you? And who
might be about to kill you and seems certain to get away with it?
