I loved the fact that House only got interested in the case after Cuddy told him that the guy wasn't denying the drugs. That scene and the scene with Stacy and House in the beginning were the best.
The differential was good but the case as a whole was kinda boring.
House joining Mark's group so he could piss him off was really quite funny. I love House and Mark talking about Stacy. Stacy yelling at House for going to Mark's group was amusing too.
I liked the clinic patient who was being poisoned by gum because it was just so random and funny.
Cameron and Wilson talking about cheating was an interesting way for them to go. Cameron looking at old photos at the end was okay.
An okay episode but definitely not my favorite.