A detective made entirely of a butt solves crimes with the same deadpan commitment as a noir protagonist, except every solution involves sitting on evidence. The comedy commits so hard to its one stupid premise that it wraps back around into something genuinely clever. This movie knows exactly what it is and refuses to blink, which is the only way a gimmick this dumb becomes this funny.
Detective Oshiri faces his most monumental case yet: a mystery so massive it threatens to unravel everything he knows about his world. This isn't just another puzzle to crack or crime to solve. The stakes have never been higher, and the answers he discovers could change everything forever. Joined by his trusted partner, the detective pursues clues across strange landscapes and through bizarre circumstances, each revelation pulling him deeper into a conspiracy that defies logic. The comedy never stops, even as the mystery grows darker and more complex. Every absurd moment and ridiculous scenario masks something genuinely puzzling underneath. As the investigation intensifies, Oshiri must confront uncomfortable truths and make choices that will reshape his entire existence. The relationship between detective and partner becomes the emotional core holding everything together. This film pushes the character into uncharted territory, demanding he grow beyond his silly exterior to face what might be his final case. Fans of offbeat humor mixed with genuine emotional weight will find something special here.