Quick, ask yourself a question. Before Bruce Jenner made the transition to being Caitlyn Jenner, who was the most famous transgender person you knew of. Chaz Bono? Renee Richards? Lana Wachowski? Jan Morris? Christine Jorgensen? Before any of these people, there was a man named Einar Wegener (Redmayne). He was a landscape artist married to Gerda Wegener (Vikander) who was a portrait painter. The Danish Girl is the story of this couple and how Einar transitioned, becoming one of the very first men to undergo what was known then as sexual reassignment surgery to become Lili Elbe.