A 28-year-old has to be very sure of herself to name her debut company show Sensaciones. But Sara Baras, hyped as flamenco's hottest babe, is genuinely remarkable. Her stage authority is never that of the traditional matriarch, femme fatale or suffering gypsy, but of an assertive, modern young woman. Though she possesses the undulating poetic arms of the great flamenco divas, there's also a muscular deliberation about her moves which lends them a peculiar objectivity. Her footwork too has a rare dispassionate force. Her combination of male strength and female gravitas is without doubt sensational.

But it is also disappointingly obvious - particularly if your favourite flamenco dancers are those dumpy middle-aged women who look as if they're heading off to market until they suddenly start to dance, at which point their bodies become bewitching instruments for raising the dead or keening out their heart's desire. Baras may be admirable as a dancer, but she doesn't summon up mysteries; and neither does her chorus of accomplished but emotionally blank female dancers.

The show's lack of dramatic heart is underlined by the uninspired glossiness of its staging. Drifts of dry ice and big lighting effects smooth out the edges of the dance, rather than intensify it. Jesus del Rosario's music, though featuring fine solo voice and guitar, is made overly lush by flute, violin and drums, and its drift towards pop tempi sounds old fashioned.

Baras, like many of her generation, is desperate to give flamenco a modern voice. But while she herself is unquestionably a late-20th-century dancer, she needs to find a more radical context within which to place herself.

• At Sadler's Wells till September 25. Box office: 0171 863 8000.