After his best friend Kian dies in a tragic accident, Hayden finds himself more alone in the world than ever before, having only his dog for company. But when Hayden starts to see and hear Kian again after a year of him being gone, nobody gives him a chance to explain himself, just brushing him off as another grieving friend, or telling him it's just for the attention. But to Hayden, Kian is definitely real. When he starts to hang out with Kian's younger sister more often, he finds that she is the only one to believe him, and he finds his whole life turning around.