From their earliest days, the Nijinsky siblings appear destined for the stage. Bronia is a gifted young ballerina, but she is quickly eclipsed by her brother Vaslav. Deemed a prodigy, Vaslav Nijinsky will grow into the greatest, and most provocative, dancer of his time. To prove herself her brother's equal in the rigid world of ballet, Bronia will need to be more than extraordinary, defying society's expectations of what a female dancer can and should be. The real-life muse behind one of the most spectacular roles in dance, Chosen Maiden, Bronia rises to the heights of modern ballet through grit, resilience and fervor. But when the First World War erupts and rebellion sparks in Russia, Bronia—caught between old and new, traditional and ground-breaking, safe and passionate—must begin her own search for what it means to be modern.