The Nightmare Princess follows on the heels of Deception IV: Blood Ties- which revolved around Laegrinna, a deceitful fragment of the Devil's soul who chose between Sadistic Torment, Elaborate Death, or Humiliating Demise, to defeat her foes through trickery. In this new installment players not only relive Laegrinna's entire pursuit to free her father, the Devil, from his eternal prison, they also get introduced to an entirely new, wickedly sadistic, and infernally mischievous character: Velguirie.

Velguirie's story is covered with a shroud of mystery and the player will have to solve the one hundred quests in the brand new Quest Mode to find out who she really is. The only certainty is that Velguirie is an incredibly dangerous creature that takes extreme pleasure in setting up intricately complex combinations of traps to lure her victims to their untimely- yet in her eyes wildly entertaining- death.