escendants of the Usher family from Edgar Allan Poe's short story "The Fall of the House of Usher."
The house of usher is built on death itself--and now it has a new master... For generations the House of Usher has grown wealthier and more powerful on the invention and sale of murderous military weapons. But another evil has lived and grown within the House of Usher--a legacy of depravity of bloodshed that goes back generations, and stains the hallways of the family mansion.
One young heir, Rix Usher, is reluctant to return home. But the House of Usher has chosen
him to take the reins from his dying father... to learn the house's terrible secrets. Joining in a ritual of fantastic evil, he will be forced to unleash the dreadful powers of Usher...