A mining engineer acting as a technical translator is suspected of industrial espionage after sending an innocent telegram that is intercepted by a militant snoop. Placed under investigation and reassigned to a less sensitive department, bu...
為人耿直的工程師趙書信冒雨發電報：「黑炮丟失301 找趙」，被懷疑是間諜暗語，因此遭到調查。他精通德語，本來負責與德國工程師洽談，但受電報事件影響，被調離崗位。高層...
赵书信（刘子枫 饰）是某矿山公司的工程师，为人忠厚，工作勤勉。下棋是赵书信为数不多的爱好之一，他对自己那副棋子也格外珍惜，却于一次出差归来时发现丢失了一枚，情急...
