Delia Martin has always been able to see ghosts. She left her home in San Francisco after the great earthquake because the city was teeming with newly departed spirits that had died hideously. One ghost, “Shadow”, somehow tracks her down and her presence reminds Delia that she can’t hide from her heritage any longer. Delia returns to San Francisco to get justice for this poor woman. The problem is that “Shadow” was murdered by a serial killer who has only just started killing again.