Not bad, provided you have a few drinks while watching.
Look for:
1. The age difference between the mother and new husband. I've heard of May-December marriages, but this was May-Death (she really robbed the cradle).
2. The weird voyeurism - new stepdad strips to his undershorts with a woman watching (and door to his bedroom is open). Stepdad looking at his stepdaughter in bed with her hubby, again bedroom door is open. No explanation given for this.
3.The plot twist - just didn't expect it.
Again, just have the Gin, Vodka or whatever around and you'll enjoy it.