I am going with "The Private Eyes' Requiem". I hated both movies with a passion, but something about 7 was insanely odious. It had a nice setting, focused on a likable character and a mystery that was in theory interesting. And yet, the mystery itself proved a sideshow to a lot of disjointed chases and scenic views. The Shinichi/Heiji swap was also terribly predictable and lame, and the ShinRan moment was thrown in without a thought to flow. Also, the whole "a bunch of people die at the very beginning with no buildup" shtick was really annoying, not like a good detective story at all. 10 was terrible, but it was happy about it. 7 was terrible, but yearning to be good.
Detective Movies Contest 2013: Information Thread Current Faceoff
"The energies of our system will decay; the glory of the sun will be dimmed, and the earth, tideless and inert, will no longer tolerate the race which has for a moment disturbed its solitude. Man will go down into the pit, and all his thoughts will perish. The uneasy consciousness, which in this obscure corner has for a brief space broken the contented silence of the universe, will be at rest. Matter will know itself no longer. 'Imperishable monuments' and 'immortal deeds,' death itself, and love stronger than death, will be as though they had never been."