A series of murders involving constellation symbols have broken out in Xinggang City: a ram-horn carabiner (Aries) was left behind at a rock climbing site, a lion head mask (lion) was hidden in a grand theater, and archery targets were engraved with marks of shooters... The victims were all people who "violated" the characteristics of the corresponding constellations - greedy Taurus, fickle Gemini, hypocritical Libra, as if they were accurately hunted by the "god of the constellations"!
Rational criminal investigation captain Lin Chen (who has a "memory palace of details" that can reconstruct crime scenes) meets astrologer profiler Su Xing (who uses an astrolabe to analyze the murderer's psychology). The two confront each other over "whether zodiac signs are a tool for solving crimes", but are forced to join forces to track down the mastermind behind the scenes. Gu Ye: a former famous astrologer, because his daughter (Pisces) was killed by a "zodiac betrayer", launched the "Twelve Houses Purification Plan", and there will be a murder every zodiac cycle!
The murderer posted a bloody notice on the dark web to provoke the police; Lin Chen's partner Zhang Lei, who had been missing for three years, was deeply involved in Gu Ye's plan. When the last Capricorn symbol is carved into the Xingang City Planetarium, can Lin Chen use the Memory Palace to solve the ultimate mystery? Are zodiac signs the key to salvation, or an excuse to kill? This hunting game across the twelve constellations has just reached its climax - will the next target be you?
