Saburo Sugimura works for the PR department of a company which his father-in-law Yoshichika Imada runs. One day, Yoshichika Imada tasks Saburo Sugimura with work regarding a man named Nobuo Kajita. A complicated story unfolds from the request.
Nameless Poison (Season 1)
28 Years of Darkness - The Sisters' Secret and the Mystery of Their Father's Death (Episode 1)
Air date: 2013-07-08
Runtime: 48 min
Recollection of Memories from 28 Years Ago - The True Identity of the Kidnapper (Episode 2)
Air date: 2013-07-15
Runtime: 48 min
Elder Sister's Poison, Younger Sister's Poison - The Kidnapper Who Disappeared and the Second Victim (Episode 3)
Air date: 2013-07-22
Runtime: 48 min
Father and Mother are Criminals - A Mysterious Threatening Call from the Perpetrator (Episode 4)
Air date: 2013-07-29
Runtime: 48 min
Final Episode Part I - The Shocking Poisonous Conclusion - A New Murder Case Begins (Episode 5)
Air date: 2013-08-05
Runtime: 48 min
The Mystery of the Random Serial Poisoning Case and the Terrifying Stalker (Episode 6)
Air date: 2013-08-12
Runtime: 48 min
The Two Women's Dispute over Inheritance…Is the Culprit the Daughter or the Mistress? The Stalker Looms (Episode 7)
Air date: 2013-08-19
Runtime: 48 min
Poisoned! 5th Incident Occurs...Suspects Narrowed Down to 3 (Episode 8)
Air date: 2013-08-26
Runtime: 48 min
A Father’s Confession…The Stalker’s Tragic Past! The Mistress’ True Identity! (Episode 9)
Air date: 2013-09-02
Runtime: 48 min
Final Chapter~The Shocking Confession of the Real Murderer! The Stalker’s Fangs Attacks the Sugimura Family! (Episode 10)
Air date: 2013-09-09
Runtime: 48 min
Final Episode ~ Protect the Family from the Stalker! Sugimura Counterattacks! (Episode 11)
Air date: 2013-09-16
Runtime: 47 min
