In the 1940s, New York socialite Florence Foster Jenkins (Meryl Streep) dreams of becoming a great opera singer. Unfortunately, her ambition far exceeds her talent. The voice Florence hears in her head is beautiful, but to everyone else it is quite lousy. Her husband St. Clair goes to extreme lengths to make sure his wife never finds out how awful she truly is. When Florence announces her plans for a concert at Carnegie Hall, St. Clair soon realizes that he's facing his greatest challenge yet.