By some cataclysmic miscarriage of injustice, Rotten Tomatoes Tomatometer is exactly correct. How Rotten Tomatoes got this so correct is completely beyond me. Meanwhile, the Audience Score merely informs me that a number of viewers don't know what they're watching. Which is perfectly fine. This pairs nicely with Hole In the Ground (2019), Counterpart (2017), Little Joe (2019), Bladerunner (1982), Solaris (1972), Invasion of the Body Snatchers (1956, 1978), among other titles that look at simulacra of the genuine living. There is also a component of the wistful possibility of second chances. Doppelganger, as intrinsic or irremovable duality, -Evil Kirk, Evil Spock, et al- is an amplified port of the idea that a 'parallel self', perhaps even formally framed by and originating from a parallel universe, is a projection of hidden self, or, the self we really wish would stay hidden. To ensure that nothing is so simple as that first, typical, reductive case, there are also doppelgangers thrown in that are the reverse, and are the best selves of the duplicated individual. This last application reminds me of a strong line from Counterpart - 'love the person not for who they are but for what they want to be'.