A harrowing engagement with the sheer presence of a man who did the unthinkable: Issei Sagawa, who became a tabloid magnet after killing and cannibalizing a woman in Paris in 1981. Caniba moves past sensationalism to immerse viewers in an unnervingly intimate encounter with Sagawa, who has since lived off his notoriety (as a sexploitation star and manga author), and his brother and primary caretaker. The filmmakers use this modern-day instance of cannibalism, long a subject of anthropological study, to raise questions about repulsion, desire, madness, and more. Audacious and unflinching, Caniba compels us to reckon with the most extreme limits of human behavior.