Shen He, the young minister of Dali Temple, was unjustly imprisoned, and his whole family was overturned. The only daughter, Shen Suining, disguised herself as a man and sneaked into Dali Temple as an official under the name "Shen An", vowing to find out the truth.
In Chang'an City, secret room murders occurred one after another on a full moon night. The deceased were all related to their father's old case. Each corpse held a piece of silk written in blood with the same word - "Crane".
The new minister of Dali Temple, Pei Changan, invited her to investigate the case. This person was an expert in solving cases and behaved erratically. He saw through her disguise on the first day, but chose to remain silent. As the investigation deepens, she discovers that Pei Changan is not as simple as he appears - he is the orphan of the deposed prince fourteen years ago. He changed his name and endured it for half his life, just to find out the truth about his father's conspiracy.
Two people living under false names came together because of the same enemy.
Si Tianjian Zheng Xie was as gentle as jade for a long time, but he frequently came in and out of the deceased's mansion on full moon nights. Cui Heng, the prime minister at that time, had hands and eyes as far as the sky. He used the same method to bring down the prince and Shen He successively in the past fourteen years. Forged secret messages, sophisticated secret chamber mechanisms, ritual killing techniques - all clues point to a bottomless court conspiracy.
She got deeper into the puzzle step by step and walked side by side with Pei Changan. They visited their dead father in prison, set up an ambush to capture the murderer under the moonlight in the abandoned garden, and explored the prime minister's secret stronghold at night to collect evidence. Every step steps on a knife's edge, every truth heavier than the last.
And the people she trusts the most around her may have their own concerns.
