This is pseudo-science fiction movie that's heavy on premise.
Acting is well done by all parties, and the production values are good.
But the plot is a bit of a dumpster fire that descends far into the nonsensical.
If you don't pay close attention to the premise, the plot doesn't make any sense and, if you do give it close scrutiny, it becomes utterly implausible, ruining the immersion.
This is a simple, human story about, life, compassion, and kindness.
Well written, well directed, well acted.
Murphy plays his character with ease and grace, and the movie tells the story of how a person's persistent kindness can change another person's life irrevocably.