Sam is 28, Swedish and spending the summer in London, working for a top marketing agency. Over the course of the sticky summer months, she falls hard for Lucas, a man she first met as a teenager. Lucas is working at a boutique clothing store whilst trying to get a foot on the corporate ladder, and struggling to hold the pieces of his life together. Sam is a gorgeous distraction. But you can only avoid reality for so long, and both Sam and Lucas know their relationship can't last. Nobody can be this happy forever, surely?