I saw a late night movie nearly 10-12 years back on a Russian channel so I am not sure if it's an english movie but it looked like one.
It was about a housewife who has sex with guys at her home, scene I remember is she is having sex with a fat guy (possibly plumber) on a table fully clothed and fat guy's young assistant is watching.
In another scene she is having sex with a delivery boy (again fully clothed) when her husband walks in and the boy slams the door on husband's face and he goes unconscious. I am not sure about rest of the plot.There is not much sex but it looks like a promising plot.
This is my first post on this forum. Hope to have a fun time here