Sadly, it ultimately builds to a would-be shocking twist that is not nearly the game-changer it claims to be, leaving viewers with more questions than answers.

The Astronaut has a lot going for it, but, like the lead character in the opening scenes, it doesn’t quite stick the landing.

Varley’s grip, her taut observation of nerve-wracking isolation, loosens and the film devolves into a blunt and clichéd consideration of family. The transition is awkward, and more cartoonish than moving, as the performers try to regain their footing.

Architecture fans will surely enjoy the gorgeous glass-walled house with its stunning green views; the film's finale is effective, too. But there's a chance you'll have aborted this mission long before that arrives.