Netflix’s “I Am Mother” sings the body electric … and it’s a little off-key.

Netflix has unveiled a new sci-fi post-apocalyptic flick called “I Am Mother” that, if I’d paid to see it theatrically, I would’ve been very disappointed. Watching it relatively risk-free in my living room made it all go down a little easier, though its faults are no less obvious. *****SPOILERS!!!***** The Story. The film opens with…