When you have a past as long as this, something's bound to come back to bite you! A lone female vampire, Helena, stumbles into an alliance with Marcus, an unwitting human, when she's attacked by a rival coven on the streets of Sao Paulo. But when what seems at first to be a simple fight over hunting territory quickly turns into a lethal game of cat and mouse, Helena is forced to confront a shocking past betrayal and battle for her very existence.