Yuzuki Mitsuji (Ittetsu), Motomiya Hiroyuki (Oshima Joe), and Asakura Sho (Kitano Shota) work on the same project at the advertising agency Chuo Dandan. They each have a woman they are in love with, but each woman has a "secret". What secrets will be revealed on the trip of these three couples, and what will the men decide to do...? Director Tomoko Nakajima fifth film, Secret, is finally here!