In 1889 Paris, heiress Manuela offers ambitious businesswoman Cora her Venezuelan property in exchange for one last thrilling summer before her impending marriage of convenience.

In Victorian London, Tommy, a Scotland Yard detective, and Imogen, a vigilante, have been circling one another since they met. But Imogen is unsure whom she can trust as they could be tied to a string of crimes she and her friends are investigating.

In Victorian London, Jewish heiress Isabelle could lose everything unless she marries the right man. She secretly enlists synagogue custodian, Aaron, to research her potential matches but she quickly finds his understated charm irresistible.

In 1950s New York City, two reporters—an Italian American Brooklynite and the Upper East Side-raised son of the newspaper's owner—go from colleagues to roommates, finding friendship and more as they navigate the social norms of the era.