Following the success of "Goodbar", which brought her fame and wealth and subsequently allowed her to write full-time, Rossner returned to her novel of conjoined twins. Published in 1977 by Simon & Schuster, "Attachments" tells the story of Nadine and Dianne, friends who together marry twins Amos and Eddie. A novel not just about Siamese twins but a host of human attachments, it was only a modest best seller, but reviews were laudatory. Hailed by Jerome Charyn in "The New York Times" as "a lovely, bitter, frightening book," it was also described as "... an ambitious, disturbing novel by a bestselling author who might have written a trashy book, but decided instead to mess up our minds."