More strain on the marriage of the newlywed mortal and witch.
I like this episode, and a number of others in Season 1, I always thought the best of the series was playing up the contrasts and this works best when the opposites are newly married. Lots of allegory to life in the 60s, a housewife literally stranded in the suburbs and the working man who mostly meets clients and occasionally has to draw some sketches - no computers, a desk with a phone and blotter and two pieces of paper, but lots of human relationships to get him in trouble. As usual, there is always something a bit sleazy about Larry, in this story off to Paris to meet clients.
It is actually a kick to watch Sam pop back and forth across the ocean while the nervous Darrin follows her by plane - all the while thinking that she is bored with him and the life she leads at home. Not a bad assumption actually, one that would have been interesting to follow up a little more in the series.