Si this is basically Mr and Mrs Smith from...
from the neighbors' perspective
sharePlus a touch of Date Night for good measure.
What's missing in movies is same as in society: a good sense of work ethic and living up to ideals.
I was literally just about to post something about this sounding very similar to Date Night... guess that's what movies have become these days, just mixtures of elements from other movies.
I like how the OP puts it though.