American Horror Story: All the Definite Connections Between the Seasons

Back before Dr. Arden (James Cromwell) assumes his identity as the crooked surgeon at Briarcliff, he's a Nazi doctor named Hans Gruper. In the same way he mutilates Shelley (Chloé Sevigny) in Asylum, Gruper amputates Elsa Mars's legs as part of a twisted snuff film in World War II-era Germany.