With the help of a magic fountain, Amarillis takes on the likeness of Amoret. The disguised Amarillis makes advances on Perigot, convincing him that his Amoret is unchaste. Bitterly disappointed in his love, Perigot stabs the real Amoret.
With the assistance of a magical spring, Amarillis assumes Amoret's appearance. The masquerading Amarillis pursues Perigot, persuading him that his true Amoret is unfaithful. Heartbroken over his love, Perigot stabs the genuine Amoret.