Amy Watson (MyAnna Buring) is a pharmaceutical researcher on the verge of something world-changing. When her partner is murdered and her ground-breaking discovery is stolen by persons unknown, she becomes the next target. The mysterious hostiles pursuing her are well-funded, well-informed, and seemingly everywhere. Her only escape route, for reasons the film explains with a shrug and a line about a "sealed perimeter," is a treacherous aerial runway - a zip wire strung across an unthinkable drop. Amy is terrified of heights. Naturally, this is the moment the universe demands she become an expert at hurtling through the air on a steel cable.
The setup is serviceable enough for a ninety-minute thriller. The problem is that Zip Wire treats its central conceit as a climax rather than a premise. The film keeps finding excuses to put Amy back on the wire, or on a ledge, or on something high and terrifying, as though the title were a contract it is legally obligated to fulfill every fifteen minutes. Characters appear and vanish with little justification. Evan (Joseph Millson) exists primarily to say exposition and look concerned. Donaldson (Saffron Burrows) is a vaguely menacing presence whose motivations remain as opaque at the credits as they were at her introduction.

















