The series follows a brilliant and fearless "super detective" at the Hua'ao City Police Department, famed for solving every case that comes his way. But when a string of seemingly flawless murders occurs, his limits are pushed to the brink. The killer moves like a ghost, leaving no trace behind, as though they never existed. Amidst the shifting tides and hidden dangers of Hua'ao City, every shadow may conceal a deadly threat