The Vault of Horror-Terry-Thomas, Anna Massey-1973 IMDB 6.5/10

Five strangers board a descending lift, one by one, in a modern office block in London. They reach the sub-basement, and find a large, elaborately furnished room that appears to be a gentlemen's club. Resigned to waiting for help, they settle down with drinks and talk. The conversation turns to dreams, and each man tells of a recurring nightmare.