The Furies were a 1970s lesbian feminist collective that advanced the notion of lesbian separatism to correct what they called the “zig-zag and haphazard” straight women’s movement. The Furies were intense: twelve women began the group, worked together, and then broke up in just under two years. In that short time, they wrote and published a widely read newspaper (also called The Furies) that advanced their ideology and still seems relevant 50 years later. It lives on in libraries, private collections, archives, and on the web. Once a Fury features interviews with and writings by the Furies as well as archival materials. Going into detail about coming together, working together, and splitting apart, the interviewees offer a look into the workings of early 1970s lesbian-feminist activism.