Well, it happens to all relationships, after five years of wedded bliss, the flame of lust has gone out. I still love her deeply, who could not, for she was beautiful, perhaps a few extra pounds now, but they all seemed to have gone to the right areas.
Two women are blackmailed into doing something that neither one wants. One is blackmailed into helping her estranged lover get the goods on a newlywed husband, so that he can get into the newlywed wife's pants. The newlywed wife is blackmailed into having sex with the estranged husband. The way out of for these two women is just as bad as the what was done to them.
When his wife's response to her empty nest is a cliched affair with her younger boss, Bill's response is to choose a more imaginative cliche of his own.