Shen Chuan, a young man fresh out of police academy, becomes a junior government clerk, full of naive hopes about his new career. He intends to start at the bottom and steadily build up work experience. But on his very first day, his immediate superior suddenly dies, and the ensuing investigation draws him into a storm of trouble.
Relying on the keen powers of observation he developed at school, along with the drive and resilience unique to young people, he searches for a breakthrough among a tangle of clues. In this test of intelligence and courage, can Shen Chuan stay true to his duties and help the organization uncover the truth?