Cosmopolitan, the world's bestselling women's magazine, has been setting trends in beauty, fashion, style and sex for decades. But who are the talented tastemakers behind the fresh tips and chic articles? "So Cosmo" follows several rising stars at the magazine as they balance the varied challenges of their careers with bustling personal lives in New York City. Despite the pressures of working for Joanna Coles, Cosmopolitan's intimidating editor-in-chief, the perks of being associated with an internationally-renowned magazine - including invites to celebrity parties - make it all worth it.