Episode 1
Mariko is a new investigator at the Kyoto Police Forensic Lab. Divorced four years ago, she has studied scientific investigation with the FBI in the U.S. A man falls to his death while viewing an annual Kyoto festival. Mariko is arrested when she loudly protests at being stopped for questioning. Detectives, expecting to see a suspect, are speechless to discover her locked up.
Episode 2
A man is found dead on a riverbank. After examining the body, Mariko lets it slip that the cause of death might be asphyxiation. She is chastised by Inspector Koba for making a comment that could complicate investigations. However, the autopsy seems to support her intuition.
Episode 3
Prof. Kawamura's assistant is found strangled to death on campus. From the evidence found at the scene, Inspector Koba suspects the professor, who turns out to be a hard nut to crack. Meanwhile, Mariko discovers that her ex and Junko are expecting a baby.
Episode 4
While on an outing with the Forensics team, a member happens upon a half-buried skeleton. According to the coroner's office, it belonged to a woman in her mid-twenties who was probably killed 7-10 years ago. Mariko requests a reconstruction of the head.
Episode 5
An employee at a science-based company is seriously injured when he opens a letter bomb. The newspapers receive a note from the perpetrator, blaming the company for destroying the environment. Forensics works to analyze the handwriting and some lipstick found on the note.
Episode 6
Mariko is asked to give a talk at an elementary school. A few days later, the security guard is found dead, with burns on his upper body. It's not clear whether it was suicide, murder, or an accident.
Episode 7
When Mariko is surfing the web one night, she is shocked when she sees scenes of a young woman being shot to death in a cellar-like room. Copying it onto a disk, she takes it in to work the next day, but nobody takes it seriously.
Episode 8
Someone tries to kill Mariko, but when he fails, kills himself instead. His gun had been used in the murder of a detective four years before. Mariko receives a call from a reporter who claims to have some information
Episode 9 - Final Episode.
Inspector Koba is critically injured in a shootout with Kurihara, who killed a detective four years ago. The gunman dies, but according to Koba, he had accomplices.
