Referred to as the Pearl of the Orient, supermodel Miori Reiko has had her fair share of scandals due to her eccentricity and her wild love affairs. One day, Reiko is found dead in her apartment by her housekeeper, Ota Michiko. The medical examiner found traces of potassium cyanide in her body, which kick-started a major police investigation into her death.  Who is the true murderer of Miori Reiko?

Variations

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".