Seven men and women, consisting of three couples who are reluctant companions and one single man, play in the game with the secret that their relationship and friendship will collapse. Japanese remake of the Italian movie "Perfetti sconosciuti".

Japanese film directed by Michio Mitsuno.

Kasumi Sawaki (Honami Suzuki) works for a top-ranked newspaper publishing company as a capable economic reporter. Speaking six languages fluently, she vigorously performs research and interviews. Her fiance, Ishii (Shingo Tsurumi) is an elite in the same company. Although her work and love seem to go very well, she is suddenly relegated to the minor Sports Department which is full of strange colleagues.