The film stars Mao Inoue (井上真央) a young prolific actress who won the 2011 Japanese Academy Award's Best Supporting Actress for her role in Rebirth (八日目の蝉) in 2011, and is currently appearing in cinemas in Eien no Zero (永遠の０). She appears along side Go Ayano (綾野剛).
The story revolves around a mysterious murder of an attractive office worker, and the effect of vicious Internet rumours and gossip, interference by mass media and paparazzi, on a suspected co-worker.
The Snow White Murder Case is adapted from the novel of the same name by Kanae Minato (湊かなえ) who also wrote the novel behind the award winning 2010 film Confessions (告白). Similar to Confessions, The Snow White Murder Case tells the same story from the point of view of several intersecting characters. I'd assume that the same successful format will be kept for the movie.