This is Japanese animation director Takeshi Koike's second feature film, or is it? It's divided into two 25-minute chunks, and episodic in nature, featuring a recap at the beginning of the second half. One can't help but wonder if these were intended to be direct to video episodes, or the pilot for a series, because the presentation is so un-cinematic.
In any case, DAISUKE JIGEN'S GRAVESTONE is Koike's stab at the massive fictional world of Lupin the Third, which was previously soft-rebooted into an amazing television show in 2012.
GRAVESTONE is a solid Lupin story: it features all the criminal hijinks and humor you'd expect. It's a retreat from the more experimental nature of the aforementioned television show, back to the stereotypical Lupin formula, with Koike's high-gloss production values laid on top, particularly during a car chase sequence reminiscent of REDLINE, Koike's first film, and one of the best anime movies of the last decade.