Set in the days when a healthy paranoia about witches was considered normal, Knights Contract follows the twisted tale of Heinrich, an immortal executioner, and Gretchen, a resurrected witch. Once the victim of Heinrich's blade by the order of the game's antagonist, Dr. Faust, Gretchen now has him under her control as the two must work together to rid the land of the supernatural foes who are cursing its people with the black spell of death.