George Frideric Handel’s Alcina, which opened at Santa Fe Opera on Saturday night, is a fantasy about how people distinguish deception from reality when they are enchanted by love and magic. Whether or not viewers of Handel’s time — the work premiered in 1735 — gave credence to magic per se, they accepted it as a theatrical convention. The composer crafted this piece to capitalize on surprising stage effects, and the audience tacitly agreed to suspend expectations of realism and go along for the ride to the magical island of a sorceress.

Director David Alden asks the same of today’s audience in his hyperactive, lightly surreal take on this classic work. The principal stage-set comprises (on the audience’s left) a miniature proscenium theater of ornamented Classical design and (on their right) a mural of Hokusai’s The Great Wave off Kanagawa, part of a seascape that extends across much of the real stage. These elements signal the intersection of the enchanted isle of Handel’s opera and the theater in which Alden’s conception unrolls. Odd artifacts decorate the scene, including animal skeletons that suggest a natural-history museum and a chandelier consisting of a spinal column culminating in a claw, from which a lightbulb is suspended. During the Overture, members of the new-circus troupe Wise Fool New Mexico bustle about the stage and auditorium performing handstands, climbing walls and getting into brawls.

The catalyst of the action is the sorceress Alcina, who manipulates the amatory passions of mortals in a quest to find true love for herself. She enchants her romantic prey, but when they cease to please her, she turns them into wild beasts, rocks or streams. The current object of her affection is Ruggiero; under her spell, he has neglected his fiancée Bradamante, who (disguised as her own brother) arrives pursuing him. Alcina’s sister, Morgana, has a crush on the cross-dressed Bradamante, as she makes very clear in the opening scene, where she partners him/her in a tango. Subplots present further entanglements. Unless viewers cement the narrative in their minds beforehand, they may find themselves sometimes wondering what on earth is going on. In that sense, they will be handicapped much as the characters are, forging on through uncertainty hoping to find solid footing — which, in the end, they may.