Annie meets Gilbert, a ghost from the 1980s, who shows her her own headstone. Her subsequent exploration of why she has remained on Earth after her death results in her discovering that she was actually murdered by Owen, throwing her emotions into conflict. Mitchell tries to help Lauren give up killing and bring her back to the person she was. George struggles to build a relationship with Nina, unsure of how much he should tell her. Gilbert expresses his love for Annie, and is then permitted to "cross over" to Death through a supernatural doorway. From this, Annie learns that until she fulfils the one thing keeping her Earth-bound, she will never be permitted to cross-over.