Ann, a frustrated wife, enters into counseling due to a troubled marriage. Unbeknownst to her, her husband John has begun an affair with her sister. When John’s best friend Graham arrives, his penchant for interviewing women about their sex lives forever changes John and Ann’s rocky marriage.
In the late 1950s, British police officer Tony Aaron resigns from the force after sleeping with Hazel, wife of the man whose house he was supposed to guard. In his new job as a fake private investigator, he helps couples get divorces by photographing Hazel having "affairs" with the husband. When she is murdered during a job, Tony begins having an affair with the dead man's mistress, Angeline, while trying to prove his innocence.
For Tobe, a nerdy, horny, frizzy-haired cineaste who doesn't quite fit in with the average contemporary teen, the pinnacle of womanhood is Monica Velour, a soft-core actress who reached the zenith of her career in the 1980s. When Tobe learns that his love idol is headlining hundreds of miles away at the Gentlemen's Petting Zoo in Indiana, he drives off with carefree glory, filled with the hope of meeting her.
Failed musician Jay abandoned his family and now earns a living as head bartender in a trendy London pub. Every Wednesday afternoon, a woman comes to his house for graphic, almost wordless, sex. One day, Jay follows her and learns about her. This eventually disrupts their relationship.