After a bruising divorce, headstrong Juliet Miller invests in a flat and advertises for a flatmate. Along comes Floz, raw from her own relationship split. When Juliet's brother Guy meets Floz, he is overcome with a massive crush. Can Guy turn Floz's affection for his family into love for him? Guy's best friend Steve has always had an unrequited crush on Juliet. After a night of too much wine, they end up in bed. Convinced that Juliet doesn't feel the same way, Steve agrees to a "just-sex" relationship, until they find their dream partners. Then Juliet makes a series of discoveries which will turn the lives of all four friends upside-down.