Mary Wigman, Germany's premier dancer between the two world wars, envisioned the performer in the thrall of ecstatic and demonic forces. Widely hailed as an innovator of dance modernism, she never acknowledged her complex relationship with National Socialism. In Ecstasy and the Demon, Susan Manning advances a sociological explanation for the collaboration between German modern dancers and National Socialism. She models methods for dance studies that contextualize choreography in relation to changing sociopolitical conditions, bringing dance scholarship into conversation with intellectual trends across the humanities.