A woman born with Sirenomelia—so-called mermaid syndrome—investigates a Cold War Arctic submarine base. The location opens to the cosmos, listening to the earth and to the sounds of quasars. Sirenomelia exposes a future liberated from the military and economic structures that oppress the present; a future in which relations between humans and nonhumans have been transfigured; a future in which the cosmic dimension of earthly coexistence is woven into the texture of the social.