本片是2017年卡纳达语电影《卧底》（Mufti）的后续，既是续集又是前传。
明朝天启年间，朝堂党派纷争宦官横行，某日深夜，阉党党羽崔肆暴毙府中离奇死亡，魏忠贤大为震怒，命锦衣卫彻查此事，千户徐攀星指派锦衣卫小旗楚墨督办，始终心怀正义不愿同阉党同流合污的楚墨无奈接受，然而随着案件的深入逐渐牵扯出背后一场的巨大阴谋......
Ready to leave his profession behind, Loreno, an assassin, lends help to an old friend, Cetan, and taking one last job in Thailand seeking out a local kingpin. A judgment lapse violently crosses paths with an old colleague Paul.
