Caresse Crosby invented the bra in 1910, which might be the least interesting thing about her. She and her husband Harry Crosby lived wild lives in Paris, where they published as-yet-unknown authors like James Joyce and Ernest Hemingway, and helped encourage photography as an art form. Famous for their open marriage, they hosted champagne-soaked bathtub orgies, opium-fueled sex romps, and debaucherous threesomes. But one of their sidepieces would turn out to be a truly fatal attraction.