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. The main suspect is Sasahara Nobuo, a doctor in one of the major hospitals, who happens to be Reiko's ex-fiance. Sasahara had left his wife and kids to be with Reiko, forsaking his reputation and social status only to have the engagement ended within 3 months time. The broken engagement made all the news, with the reporters all labeling Sasahara as a weak pathetic middle-aged man who was played out by Reiko. When the police found Sasahara's fingerprints on the broken glass in Reiko's bedroom and his leftover cigarette stub in her ashtray, together with evidence of him withdrawing potassium cyanide from his workplace, they were all ready to charge him for the murder of Reiko. Except, Sasahara vehemently denies killing her. He claims that Reiko had once told him that there are 6 people who want to see her dead, and she had given him the names of 5 of them; Sawamori Eijiro, CEO of the apparel company that Reiko exclusively models for; Kitagawa Jun, a photographer; Magaki Kimiko, the famous designer; Ikejima Risa, a fellow model; and lastly, Takagi Fumiko, a music producer.

At the same time that Sasahara gives the name list to Detective Okabe Keizo, the police received news that Sawamori Eijiro had committed suicide and had left a note confessing to her murder. Not believing in coincidence, Okabe decides to question the other 4 people too, with the hopes of finding out who is the true murderer. One by one, each of them confess to killing her...

Who is the true murderer of Miori Reiko?