Not that it really matters, but the basic plot is that Birch hires strippers to tempt Klein's married and engaged friends to cheat on their spouses (with Klein's full and enthusiastic permission). Really. She doesn't believe people will ever decline the opportunity to cheat without getting caught, for no reason other than that she's a scientist, I guess? You keep watching, waiting for her to reveal some tragic backstory about how she was cheated on, but it never happens. The tragedy is you being cheated out of 103 minutes of your life.
But none of that made me angry. What did was a side character who is a grotesque of motherhood. She's constantly spilling breast milk on other people. In one scene she grabs her breasts in a bar and milk sprays out of her shirt onto an unsuspecting patron. When she cheats on her husband, Chris Klein calls her a "sad woman with a blown-out vagina that needed tending." What MAN wrote this? I thought when I heard that line. So I internet-marched over to IMDb and learned that ... this movie was written by a woman. And that woman, who also produced this film, cast herself in the role of a sad mother with a blown-out vagina that needs tending. After that, I wasn't really angry anymore. I was just sad.