Overcoming a life of hardship and loneliness, Gemma Hardy, a brilliant and determined young woman, accepts a position as an au pair on the remote Orkney Islands where she faces her biggest challenge yet.

In London, a man picks up an abandoned baby in a bus station and gives it to his childless sister. It's illegal, but she decides to keep it. What they don't realize is that the baby is bait in a scheme to extort money.