Rape that does not involve life-threatening physical violence, is committed by someone known to the victim, and is not reported to law enforcement (called, here, commonplace rape) raises two questions: “Why didn't she fight back or run away?” and “Why didn't she say anything at the time?” Recently, research on “tonic immobility,” based on animal predation studies, has provided a physiological explanation for experiences of immobilization during sexual assault. The juxtaposition of animal predation with commonplace sexual assault raises the question: How is it that a response reserved, in animals, for lethal, no-way-out scenarios is present in modes of violation where the victim does not report fear of death or extreme physical harm? Neither does this research help explain why women fail to report. This philosophical exploration of the meaning of tonic immobility in sexual assault helps to justify the juxtaposition of life-or-death scenarios with less-than-life-threatening violation, and sheds light on the reason for women's silence after sexual assault. Rape is accompanied by deep historical meanings that can be encapsulated in the notion of “social death,” associated in the U.S. with colonial conquest, enslavement, and impoverishment. The specter of social death haunts commonplace rape, producing life or death responses.