Where will the sorrowful love between the father of a victim and the mother of a murderer go, after it heads towards a catastrophic dark precipice?

This is a story of a collapse and the restoration of a victim’s family, and the family of the murderer involved in the same incident.

When Kyoichiro Shikata returns home, he receives the news, that his 14-year old son had been stabbed to death. It turns out that the assailant is a 13-year old classmate of the victim. However, due to juvenile law reforms, children under the age of fourteen, are not legally allowed to be punished in a way appropriate for their crimes.

Kyoichiro gets blamed, due to the fact that he was an workaholic, and is labeled as a savage for expressing his fury towards the 13-year old boy who murdered his son. After losing his job, friends, and his own family, who has turned their back on him, the only thing keeping this father alive, is his desire to avenge his son’s death. He possesses feelings of a great hatred towards the young murderer, who is protected by a juvenile law, despite committing a heinous crime, and also towards the mother who raised him.

But fate is ironic. Kyoichiro’s feelings are deeply swayed, upon realizing the fact that the murderer’s mother is also lonely. These two parents, who both went through horrendous ordeals, are desperate for a temporary relief, from the heavy burden they both bear, and eventually begins to grow close to one another...


志方恭一郎（遠藤憲一）が帰宅すると、待っていたのは息子の訃報だった。家庭内暴力をふるう不登校の14歳の息子が殺害されたのだ。
犯人はすぐに逮捕された。加害者は、息子と同級生の少年で、年齢は13歳。殺人を犯しても少年法で守られていて、14歳以上でなければ、犯した罪見合う刑罰が下されることはない。

凄惨な少年事件が起きると、当事者であるその家族の人生も理不尽なまでに大きく変わる。大切な家族を失った悲しみの中で、好奇の目に晒され、プライバシーを掘り返され、まるで事件の原因が家族にあったかの如く糾弾される。
この事件の「被害者の父」、志方恭一郎がまさにそうだった。

仕事人間だったことを非難され、悲劇の夜、酒に酔い、怪しげな店で遊んでいたことが発覚。妻・雪子（田中美佐子）や娘たちに恨まれ、警察からも疑いをかけられる。
加えて、加害者少年への怒りを爆発させたことで、人でなし呼ばわりされ、世間からの容赦ないバッシングを受ける。

職を失い、家族の絆が綻び、やり場のない怒りを抱えた「被害者の父」。生きる支えは、息子の無念を晴らすこと。矛先を向けたのが「加害者の母」八巻はつみ（田中美里）で、儚げな美しさをもつ、シングルマザーだ。
法律に守られた少年の行方や、殺人を犯す少年を育てた母親の動向を知るために、怒りと復讐心から己を偽り近づいてゆく。だが運命は、皮肉だった。

絶望の淵でもがく恭一郎が、自分と同じ痛みと悲しみをはつみの中に見た時、加害者の母親もまた、孤独にもがき苦しんでいると気づき、気持ちは大きく揺らぐ。
血を吐くような思いを抱えた者同士、共に背負っている重い十字架から、いっときの解放を求めてすがり、寄り添っていく。

破滅へと突き進み、暗い断崖へと堕ちてゆく二人の許されぬ愛の行方は……

A mystery drama featuring two female detectives tagged together to solve a cold case.

Tomo Yashiro, a Judo expert is a young macho female detective who tackles cold cases with her abundant righteousness, passion, and strong instincts. She is ready to go anywhere any time without much forethought or consideration for herself. Her buddy, Risa Narumi, is a letter-philia with very high intellectual capability. She is a true expert in analyzing documents, and her exceptional skill enables her to detect the character and thoughts of the writer from what he/she has written even if it is a short phrase.
Their characters are almost total opposites, but together they start to realize what they have in common. The assignment given to them is solving cold cases.
Their way of investigation is quite unusual as it starts with ‘a letter’ as the starting point for unwinding intricately interwoven cold cases.