It plays more like a 1971 X-rated movie, but this obscure title heavy on the incest benefits from a single-minded approach.
Surprise is that big names of the period, namely redhead star Cyndee Summers (famous from many a Rick Cassidy feature) and porn comedian Keith Erickson have lead roles. But they play the movie stoically, with none of the amusing schtick normally injected into a performance by Keith.
Nine sex scenes are crammed into a 50-minute running time, with incest carefully covering the siblings, parents with their off-spring, and starting it all off with Aunt Nancy having lesbian sex with lovely niece Cyndee.
The amateur technique yields a limited editing realism in the depiction of sex, very tedious in today's new porn but having a quaint charm (I'm sure Marshall McLuhan could have explained the cognitive difference) when watching an artifact as old as this one.