Exit ★★★★

Exit is a dazzling display of physicality and timing, a reminder of how most humans imaginatively limit what is physically possible. Circumstances, a Flemish circus and dance company that assembles specific artists for each of its productions, has paired choreographer Piet Van Dycke with four extraordinary performers — Harrison Claxton, Luuk Brantjes, Christopher McAuley and Samuel Rhyner — who create theatrical wonderment with a non-descript, two-story grey building with five doors.

But it’s no ordinary building, and the four young men encountering it turn out to be extraordinarily nimble. The doors float, the walls revolve, and the quartet never seems to stop moving as they jump, twist, dart, and fly throughout the hour.

It’s all mesmerizing, save one slight misstep: Exit needs a better entrance.

The beginning sequence — the chaps moving in and out of the doors — goes on for far too long. The visual is made, then repeated. And repeated. And repeated.

And without a bigger idea at play — and this show is happily intent to be a tightly choreographed, wordless ode to youthful vitality — one starts to wonder what these acrobats eat for breakfast, and if they have to go to the gym at before this early show to be properly warmed up and stretched.

The four men also change shirts frequently, but the reason for that is never clear. Sometimes they’re all wearing the same top, and at show’s end they’re each wearing something different.

Is it a take on the need to fight uniformity to find one’s own way in a constantly shifting world Not sure. (Perhaps the performers don’t like sweaty tees?) But what can be said with confidence is that, after its overlong opening, Exit is enthralling.