Dressed as an Undercover Agent, I Went Crazy in the Army.

1940, Shanghai Gudao. Neon lights and gun muzzles are everyday things. Lu Zheng, who was lurking in the military command, was in a desperate situation: his comrade Li Mingde was sent to No. 76 Demon Cave. The only radio station received the ghost code "Night Owl" every night; the only inside line was to write down the cell number with iodine, and there were eyes behind him. The undercurrent of forged documents, the secrets of the hospital cells, the anti-surveillance posts inside and outside the Qingyun... The hunter team shines at the edge of the abyss, and every step is a gamble with death. This is a secret battle of life and death that begins with betrayal and ends with redemption.