This is a BBC production, so the technical aspects are as good as ever from the BBC, with good acting, sound, editing, lighting, etc. Sadly, the script lets the whole thing down, followed by direction that seems to insist on providing a glacial pace.
Alternate reality Science Fiction where a research scientist is mysteriously shifted from one universe into another parallel universe where much of his life has changed. Instead of exploring the scientific aspects of the swap, and comparing the differences between the universes, most of the film is taken up with creating/rekindling a relationship between the man and his wife in the alternate reality. It's sort of a Time Travellers Wife situation, or an amnesiac trying to reintegrate himself into his life.
And all of this happens at glacial speed.
So, drop the science fiction aspect, give the man amnesia and the story works just as well, and just as boringly. This film isn't about exploring the possibility of alternate realities, it's a film about ruined relationships and trying to piece them back together again.
If I wanted to sum this film up I'd say - Not As Advertised.
If you want a slightly surreal amnesiac romance story watch this film. If you want some decent science fiction, try watching The Terminator again.
