Vampire Queen Betsy Taylor is having a tough time getting through the Book of the Dead-until the Devil strikes a bargain. She offers Betsy a chance to finish the cursed (literally!) thing, and finally discover all its mysteries. There's just one catch... Betsy and her half-sister Laura have to go to Hell long enough for Laura to embrace her dark heritage (after a rebellious youth of charity work) and finally make nice with her mother, aka Lucifer....