Penny seizes the opportunity of a fresh lifestyle for her family when her husband is offered a job in Europe. In the airport terminal, they meet captivating Sophie, fluent in French and looking for work as an au pair. Soon, she becomes an important area of the family’s life. But Sophie is certainly hiding something. After that Penny’s toddler son is abducted. The police beg Cent and her husband to be a part of a television appeal but unidentified to the authorities, Cent and Seth are decided to safeguard their identities. Are their accurate identities from the abduction? And that has been watching them?