Hongmei is the perfect Chinese wife: beautiful, diligent, passive. Glen is the perfect American husband: intelligent, caring, well-off. From the outside, Hongmei and Glen's life in the San Francisco Bay Area seems perfect. But at home, their marriage is falling apart. Post-its left on the fridge are their primary form of communication.

When Hongmei receives a beguiling email from a secret admirer, naturally she’s intrigued. But what starts out as harmless flirting with an internet stranger quickly turns into an all-consuming emotional affair. As Hongmei spills more and more about her dark past as a military intelligence officer-in-training in China, she falls deeper and deeper into a tense cat-and-mouse game. Desperate and self-destructive, she embarks on an investigation into her emailer’s secret history...one that may tear her life and marriage apart forever.