That Which Is Possible is a portrait of a community of painters, sculptors, musicians and writers making work at the Living Museum, an art-space on the grounds of a large state-run psychiatric facility in Queens, New York. Shot over the course of two years and structured across the arc of a day, the film observes with an intimate lens and unspools like a musical, both bracing and tender. That Which Is Possible explores the liberatory and reparative functions that creative action has for a group of artists drawn together by shared struggle.