The inaugural season of “Escalator,” presented by Stephanie Lake Company in association with Abbotsford Convent, begins with the slow traction of Kady Mansour dressed head to toe in white as a tampon, replete with two strings around each ankle, and concludes with two dancers dressed as mirrored disco balls, declaring to the audience that they are “strong enough / to live without [us]” as they rewind and rotate on the dancefloor to Cher’s “Strong Enough.” “Prepare to be moved, surprised, delighted, and devastated,” chimes the opening night event program, and in the accelerated span of an hour or so, this “Escalator” proves true. Be extended. Be challenged. Be magnified. Be wigged. Be intensified.