Four years after Inger Johanne Vik lived her life in Washington, working for the FBI, we find out the reasons she came back to Sweden. But will it stay in the past? Helen Tyler, the president of the United States comes for a state visit and unpredictical events happen.。她是我国历史上第一个皇权独揽的女人;她为人刚毅,辅佐刘邦平定天下;她阴狠毒辣,掌权十五年,诛功臣,杀皇子,满手血腥,以至“吕后”成为后世“狠毒”的代名词。历史上的吕后究竟是怎样的一个女人?她在中华民族的历史进程中,究竟起到了什么作用?。