Office worker Eveline Fenton's life changes forever when she's caught up in a suffragette march in the summer of 1909. It is here that Eveline meets Constance Mornington. Though the two girls are from very different backgrounds - Eveline is a grocer's daughter from the East End of London and Connie is the daughter of a wealthy Harley Street doctor - their meeting is the start of a life-long friendship. But both girls are forced to keep their political beliefs from their family: Eveline's father doesn't approve of the movement, believing a woman's place is in the home; and Connie's parents are more concerned with respectability. They expect Connie to marry well, perhaps dabble in charity work and leave the politics to her husband.
However, when Connie falls for a lowly bank clerk she is forced to make a choice between her family and the man she loves. Meanwhile, in contrast, Eveline finds herself attracted to a gentleman she meets at the suffragette meeting - but is Laurence Jones-Fairbrook merely dallying with her affections . . .?