Joan Rivers is 75 years old, staring at a blank page in her appointment book, and treating an empty calendar like a threat. Directors Ricki Stern and Anne Sundberg follow her across a year that includes a Comedy Central roast, a QVC jewelry pitch, gigs in small clubs and casinos, and a stint on Celebrity Apprentice that she is determined to win. Interviews with her daughter Melissa, her longtime manager, and her writers fill in the decades behind the year: the 1987 suicide of her husband Edgar Rosenberg, the falling-out with Johnny Carson after she took her own late-night show, and a career built and rebuilt through plastic surgery jokes, QVC sales, and relentless touring. Rivers keeps a filing cabinet of jokes organized by subject, and the film uses it to show a comic who treats material as inventory to be managed daily. The cameras catch her offstage temper, her insecurity about being forgotten, and the specific mechanics of a career that never stopped needing new bookings.