At the behest of his father, young d'Artagnan travels from rural Gascony to Paris, where he becomes embroiled in a devious plot between the King's Musketeers and the Guardsmen of Cardinal Richelieu.
When a vintage Jack-in-the-box is opened by a dying woman, she enters into a deal with the demon within that would see her illness cured in return for helping it claim six innocent victims.