Ana and Sean have an open relationship--not open in the sense that they see other people, but open in the sense that they talk to each other about everything. So when Ana sees a woman on the streets who sparks her imagination, Sean takes an interest. As Ana circles around the subject, Sean gets more direct. He says, What would you do if she was here. Together the couple works Elsa into their storytelling, exploring the possibility of opening their relationship further from the safety of their own vivid imaginations.