Under a special historical environment, a small person went from having to survive to growing in ambition, using his knowledge and social skills to make a career. Therefore, he made every possible profit and speculated everywhere. Eventually becoming a quintuple spy. The so-called "fivefold spy" means that five intelligence organizations are "using" him. At the same time, he is also using five intelligence organizations. There are conflicts, sacrifices, and confusions. Look at the joys and sorrows of a small person's life from an era.