"Ito Junji 'CRIMSON'" is the third anime season, following the 2018 TV broadcast "Ito Junji 'Collection'" and "Ito Junji 'Maniac'", which was exclusively streamed on Netflix in 2023 and also received a TV broadcast in 2024. The title "CRIMSON" refers to a deep crimson or vivid red color. Centered on the theme of "monsters", uniquely insane episodes have been carefully selected and adapted into animation.