Investigating Sex (alternate title: Intimate Affairs) is a 2001 comedy-drama film written and directed by Alan Rudolph, starring Neve Campbell, Til Schweiger, Nick Nolte and Dermot Mulroney.

[4] Set in the year 1929 in Cambridge, Massachusetts, Edgar Faldo is a young professor who decides to assemble a group of friends at his family mansion to discuss the topic of sex and its advantages.

Edgar hires two young women to work as stenographers to record the daily debates that his friends discuss to scientifically study sex.

The two women, the sexually active Zoe and the frigid-plain Alice, have mixed feelings being around as Edgar brings over three of his friends, who include oddball English artist Sevy, German writer and novelist Monty, and fellow professor Peter.

Club, reviewing the DVD release, called the film a "pleasant surprise," likening it to "Kinsey re-imagined as a goofy sex comedy.