On her deathbed, Aileen's mother reveals a secret she has kept for eighteen years, and pleads with her daughter to fulfill a last wish. Torn by grief, Aileen leaves Dublin, the Fair City, and Dermot, the man she has grown to love.

Lonely and vulnerable, she unwittingly befriends a salesman at the seed mill where she has found work. Suddenly, her life becomes entrenched with danger.

On a visit back to Dublin, Aileen discovers a devastating truth, but her mother's last request is still shrouded in a mystery she is determined to unravel. When she finally decides to return to Dermot, and the family she loves, will the secret she too is now hiding tear her and Dermot apart?