The Inventor, The Escort, The Photographer, Her Boyfriend and His Girlfriend is an outrageous sex romp, juxtaposing two lusty comic scenarios involving five people in a New York City apartment building during a fierce blizzard. Downstairs, Julia, a call girl, arrives for an appointment with Jeffrey, a nerdy guy who has made a fortune inventing and selling sexual devices. What begins as a routine 'trick' has quite the unexpected ending. In the meanwhile, upstairs neighbors Karen and John, an estranged couple, settle in for an evening of sweet reconciliation and make-up sex. Their plans go awry, however, when Molly, a young dancer with whom John had dallied, arrives seeking refuge from the blizzard. Drunken lunacy ensues.