Nelly thinks that Oliver is egotistical and selfish, albeit irritatingly attractive. Oliver associates Nelly with words like 'sensible' and 'academic', and can't understand why his flighty, wonderful sister, India, is suddenly so attached to her. On their first meeting, Nelly and Oliver would never have assumed that they would be anything more than casual acquaintances. Little do they know that they have both just met the person that will one day know them better than anyone else in the world. The next ten years follow Nelly and Oliver as they navigate love, friendship, and everything in between. Constantly pushed together and pulled apart again by their respective relationships with India, Nelly and Oliver's connection makes sense to them and only to them. Until it no longer does. But when a tragic event throws both of their worlds into turmoil, Nelly and Oliver are forced to face up to what they really mean to each other, and what they are willing to risk for that.