What is the main conflict in Double Standards by Judith McNaught?

The novel tells the story of Lauren Danner and Nick Sinclair. Lauren is an innocent young pianist who has come to the big city to find a job that will help rescue her father from a perilous financial situation. Lauren gets a job with Nick's company, Sinco, and quickly finds herself in a situation beyond her experience and control. Nick is fascinated with Lauren, attracted to her in ways he never believed himself capable of. However, when Nick learns that Lauren is a spy for his mortal enemy, Nick cuts Lauren out of his life without allowing her the chance to explain herself. Double Standards is a powerful novel that makes McNaught a shining star within the romance genre.