The octogenarian Mrs. Thatcher (Meryl Streep Meryl Streep) suffers from Alzheimer's disease and often switches between hallucinations and memories. She felt that her beloved husband had been around all the time, but in fact, the latter had long since died. As the daughter of the grocery store, she is often looked down upon by the world because she was born poor. However, after listening to the Conservative Party's speech, she strengthened her political beliefs and was admitted to Oxford University with excellent results. although she was defeated in a parliamentary election, she gained sincere love to accompany him and strengthened her life path in politics. From then on, she gradually became the leader of the conservative party. Finally, the Conservative Party won the election, and she became the first female prime minister in British history, forming her own cabinet government. In the face of numerous and complicated international and domestic situations, her free market policy has also been criticized, but with her extraordinary wisdom and great patience, she has overcome the situation of rebellion against her relatives, saved the British economy on her own, defended her territorial sovereignty, and was called the Iron Lady by the world.