A really funny movie starred by 5 outstanding actors including Oguri Shun. I can't help laughing through out the duration of the film. Why? As the five characters slowly investigate among themselves the truth behind the death of their gravure idol during her 1 year memorial anniversary, they unfold each other's personal lives and connection with the dead idol. During this time, they are all cooped up in a small apartment formulating reasons as to what really happened before and during the time of their idol's death. If you think this is a boring film, well watch the movie and think again. This isn't your average film full of talk, mystery and well… more talk. This is one of those films that would make you scratch your head in the beginning, then seat straight-look-forward-to-screen in the middle and finally say "So that's what happened" in the end. Its very entertaining to watch not that their acting was over the top, it was simply perfect. Every character portrayed themselves so well. The way they analyzed each other, puzzled things together and draw a conclusion to each scenario... it was very smart and witty. There were flashbacks to give a better visual of the scenarios they come up with and that definitely helped in building up the story and make the unfolding of the mystery more fun. I give kudos to the writer of this movie who made everything interesting. Cinematography wise, it wasn't much since the focus is more on each characters who are talking inside a small room and as for the music I wasn't able to remember it much but it did somehow help as a background to build up the mood of the film. Recommending this to those who like watching films which are more on the conversation side with mystery and comic relief on the side lines. BTW, there's no other film that I could compare it with since I think… it is one of a kind.