Leo Bersani’s greatness is tied to a resolutely interlocutory ethics—to his generous thinking-with (with Sade, Proust, Freud, Laplanche, Deleuze, Foucault, Beckett, Dumont; with art by way of doing theory and with theory by way of making a kind of art). Mikko Tuhkanen honors this half-century-long project by taking Bersani as his interlocutor to explore the ambivalences, tensions, irresolvable questions, but also rhythms, fascinations, and, yes, seductions of twentieth-century continental theory. Tuhkanen is a worthy Beatrice, guiding us through the paradisiacal riches of Bersani’s beautiful, rigorous, and gloriously destabilizing readings.