The manager of a diner asks two of his regular customers to tell him a supposedly true story that they had previously mentioned to him, involving a "green door". The rest of the movie appears to be a dramatization of the story's events, although no off-screen narration is heard. After arriving at a
North Beach hotel for an apparent vacation, a wealthy
San Francisco socialite, Gloria Saunders (Chambers), is taken against her will to an elite
sex club and "loved as she's never been loved before". She has sex with a group of six women, all dressed in black, after being brought out wearing a white dress on stage through the green door. The silent, largely masked audience become increasingly aroused He gives her more cunnilingus, and then they have vaginal intercourse, while Gloria continues to be stroked by the other women. When she has an
orgasm, the sex stops, and he is not shown to ejaculate. Gloria then mounts a trapeze contraption suspended from the ceiling and then engages in vaginal intercourse with one man as she performs oral sex on another and
manual sex on two others. The audience become further aroused and begin having sex with each other in what becomes an
orgy. In a
psychedelic key sequence, an ejaculation is shown with
semen flying through the air for almost seven minutes. The film features several multicolored,
optically printed, slow-motion close-ups of
money shots. This is the only ejaculation sequence in the film. The narrator then runs from the audience, onto the stage, and carries Gloria off, through the green door. The film ends with him and Gloria making love alone. ==Impact==