Superposition suffers a bit from serving two masters; both the marriage drama and the doppelgänger horror work quite well, and to a degree they reinforce each other, but they don’t totally mesh. At the very end, director Karoline Lyngbye has to choose between the ultimate doppelgänger conundrum and the ultimate relationship sting, and she can’t have both. The final shot is deeply effective, nonetheless.

Normally this is where I admire Marie Bach Hansen and Mikel Boe Folsgaard for playing unlikable characters well enough to make us emphasize with them but nah, that’s not this movie. They’re both great, fully capable of being the only adults on screen throughout, but “likable” is nowhere in anyone’s intent.

The tangled worlds are implemented really well.