All night long

""Executive George Dupler loses his temper and is demoted to the night manager at a 24 hour drugstore. George suggests to his teenage son Freddie that he end his affair with kooky suburban sexpot Cheryl Gibbons, who happens to be their relative! Events take a real turn when Cherryl tries to seduce George! Now George's hands are full with his wild new woman by day and his weird and crazy customers by night" --Container."
"Passed over for promotion after 20 years, George Dupler loses wife and job, becoming night manager of a drug store where he meets Cheryl, a sexy younger women who becomes his mistress."@en
"When George is passed over for a promotion, he punched out his superior, is demoted to night manager of a seedy drugstore, leaves his wife, has an affair with his neighbor's wife, and that's just some of the fun that goes on."@en
"George Dupler gets really angry after he's passed over for a promotion, and loses his job and his wife."
"Passed over for promotion after twenty years, George Dupler loses his wife and job, becoming a night manager of a drug store, where he meets Cheryl, a sexy younger woman, who becomes his mistress."