After a six-year relationship, Serena Summers is dumped by her boyfriend, Ethan Jameson, for a new woman. She accepts an exorbitant breakup fee and walks away without a second thought. Ethan is confident she'll come crawling back, but Serena instead resumes the academic career she once gave up and starts meeting new people. By the time Ethan realizes his mistake, there is no longer any room for him in Serena's life.