Set on an isolated farm in the days of Oliver Cromwell's reign—that's the mid-17th Century for you non-history buffs—the film centers around a the titular housewife Fanny Lye Maxine Peake living a life of solitude and repression with her tyrannical husband John Charles Dance.
He eventually takes out his dick it's a prosthetic and Maxine begins to give him a hand job before he suddenly leaves the bed! The first guy then joins them and they lay down with Maxine in the middle between Tanya and the guy.