This one looks really fascinating.
Tonight at 9pm, HBO2 will air "Quadrangle," a documentary about two middle-class couples with children who, in 1969, essentially fall in love and embark on a crazy, four-way love affair.
The story is told by Amy Grappell, and her parents made up one half of that love-quadrangle. She uses home videos, photographs, and modern day interviews to tell the story, and not surprisingly, it's a story that doesn't end too well.
"Quadrangle" won the Honorable Mention Jury Prize at the 2010 Sundance Film Festival, as well as a bunch of other honors.
The trailer will hook you.