A traffic accident exposes a baby abduction from twenty years ago in China.

Because of the accident, Lucy and Wei find out that their beloved twenty-year-old son, An’an, is not their biological child. But who is An’an and where are his biological parents? How did he become a family member? And what happened to their “real” son who Lucy delivered at a Canadian hospital?

The answers to these questions go back to their decision to send their newborn son back to China to live with his grandparents for a few months ─ a common practice for Chinese immigrants who are still in the process of setting up their new lives in their adopted country.

Lucy must go back to China to look for their real son.

In China, Lucy goes to the hometown of the nanny who had taken care of her son. But the nanny died years ago. Her son tells Lucy that An’an was stolen by a nanny named Feng Shuangqing. 

Local police help Lucy find Feng Shuangqing who admits that she sold the real An’an to a person named Wu.

Now there are thousands of questions Lucy needs answers too but by far the hardest one is whether the close and loving family Lucy and Wei worked so hard to build can ever feel like a “real” family again.