This fact-based film examines the life of Sor Juana Inés de la Cruz (Assumpta Serna), a Roman Catholic nun from Mexico City who, in the midst of the Spanish Inquisition, established herself as an important New World philosopher, poet, playwright and early feminist. When Sor Juana comes under the scrutiny of a vicious archbishop (Lautaro Murúa) for her unconventional ways, she must appeal to a powerful political connection -- the Viceroy's scholarly wife.