In the late years of the Republic of China, gunpowder smoke filled the air. On the night when the city of Nanjing was destroyed, Du Nianrou, the daughter of a businessman, witnessed her parents die for the country. Since then, her family and country have been shattered. She was forced to cross Taiwan with only the mysterious button that her sister Du Nianjin had sewn into her clothes before she died, becoming an involuntary orphan in the political chess game.
In humid and depressing Taipei, she unexpectedly reunited with her former lover Shen Zaizhou, only to find that her past warmth had long been crushed by the torrent of time and their own secrets, and they were so close yet so far apart. With that button, she connected with General Gu Zhi, a high-ranking underground worker of the Kuomintang, and learned the truth about her sister's codename "Deep Sea". She decided to inherit her legacy and transformed into a "grey sparrow", sneaking into the treacherous social scene and dealing with the enemy's eyes and ears.
The button that my sister guarded with her life was not only connected to a hidden list related to the safety of many comrades, but also gradually revealed a shocking secret codenamed "Nightingale", which was deeply rooted in Taiwan's top officials and the US intelligence network. In the turbulent undercurrent, Du Nianrou and Shen Zaizhou, amid misunderstandings, temptations and unspeakable protection, performed a love affair in troubled times that was destined to be tragic.
When surveillance eyes follow you like a shadow, when trust and betrayal intertwine, can Du Nianrou complete the unfinished mission of "Deep Sea" on the isolated island and protect the spark of hope that was exchanged for blood? And what kind of shocking ending will that button soaked in the blood and tears of our family and country eventually lead to?
This is a tragic elegy in which personal destiny and feelings of family and country are intertwined under the overthrow of the times. It tells the story of faith, sacrifice, and the deep love and perseverance that are buried in the dust of history and will never fade.
Intention: On the night before my sister died, she secretly sewed a button on my lapel.
"Nianrou, if something happens to me, give it to the 'fisherman'."
In Taiwan, I used this button to connect with General Gu Zhi.
He stared at the button for a long time and told me with red eyes:
"Your sister... Is our 'deep sea'."
"The mission she did not complete is now up to you to continue."
It wasn't until the moment of my death that I knew that the button contained a secret that shocked Taiwan's top officials——
It can not only subvert the political situation on the island, but also directly target the "nightingale" lurking in Taiwan in the United States...
And my sister may never really leave...