The 1850s. German-born inventor Joseph Faber is unveiling the most recent version of his life's work: an incredibly sophisticated "talking machine." Capable of speaking any word in several languages, it's the most advanced machine of its kind. The only problem is, audiences are mostly indifferent or, at worst, actively hostile. So when Faber is approached by up-and-coming showman P.T. Barnum with the chance to take his invention to London, he can't help but take the opportunity. The 1950s. A young woman named Allison struggles to settle into the life of a happy homemaker, a life she's not sure she even wants. Her husband doesn't understand her, doctors don't know what to do for her, and the specter of depression is ever-present. Euphonia charts these dual courses, weaving a narrative of unmatched expectations, familial love, and the struggle to be understood.