Tilly Twomley needs a change. Her hyperactive brain made graduating difficult. Working as an intern in her perfect older sister's start up is not what she had in mind. It does come with a trip to Europe, and that sounds like a great plan for her future even if she does not know what she wants to do with her life. Oliver Clark has everything in order. His autism can make it hard to interact with others. Everything is going according to plan until he has the worst flight of his life thanks to Tilly. This neurodiverse pair is forced to spend the summer together. Their attraction is more than either one would like to admit.