Keith Reynolds is a high school music teacher married to Megan and living in a small town an hour and half from New York City. He has given up a career as a musician following the arrival of their daughter-Lauren. The family is to host a foreign exchange student, Sophie, for one semester. Sophie reveals to Keith that she is an accomplished musician and they bond over their mutual interest. Keith and Sophie embark on a love affair, spending time together talking about running away together. But the story will not follow their plan.