November 1903: Clemence, young and inexperienced, is hired on a trial basis by Lady Marjorie, who decides Clemence is not an appropriate name for someone in service and changes it to Sarah. Being far too outspoken and having a tendency towards over exaggeration and drama, Sarah struggles to fit in and become accepted by the other servants.

August 1904: Finding themselves alone and having the run of the house, the junior servants indulge in a night of wild partying. When James, the Bellamy's son, show up unexpectedly, the party takes an unusual turn, causing Sarah to reevaluate her life. Unhappy with what she sees, she makes a monumental decision that will alter her course forever.

May 1905: When Elizabeth returns home from abroad, her parents plan her debut into society, but the spirited young girl has little interest. She reluctantly agrees, but at the last moment, has a change of heart and flees. Rose, more like a sister than a servant, steps up and makes the girl see the situation in another light.

December 1905: Elizabeth falls for a young German baron, whom her father is suspicious of. Richard quickly uncovers the Baron's secret, but as it turns out, Baron Klaus von Rimmer is hiding another secret, which Rose accidentally stumbles upon. The events of the evening compel one of the servants to betray not only the family, but the country as well.

Alfred, the former Bellamy footman, is on the run and dupes Rose and uses her kindness as a shield from the law.