Story continues on from the end of Deathly Hallows.
Harry Potter and his friends begin the process of starting the rest of their lives after the destruction of Lord Voldemort. For Harry he doesn't know whether to grieve or celebrate and he despite his strong friendship with Ron and Hermione, craves the one person he wanted to be with before the war: Ginny.
While Harry tries to live his life a new enemy lurks in the darkness, waiting for the opportune time to strike. This enemy is dangerous and seductive and has her sights set on Harry.