My wife got me into Dexter a couple seasons ago and I love it! For those of you who don't know, it's about a dude, named Dexter, who is a serial killer. The catch is that he had this great foster father who taught him to control his urges to kill before he ever killed a human and only to use them on bad people, like murderers, etc, who got through the cracks of the justice system.
Throughout the show though, it's all about how he leads this secret life. He eventually has a wife and baby and the whole time he's juggling this side of his life with his other side where he's secretly killing people. He never feels like he fits in and I dare say he feels guilty that he has this secret life that he can't share with anyone.
Throughout the show, I have felt a strong connection with him because I've ALWAYS felt like I was wearing a mask. When I'm at work and people are getting up in my biznass, I'm like "you f**k! You don't know who I really am! I'm an intelligent, artistic genius rock star and I just want people to understand me!" I have to be fought and I have to fight because that's what people do in my business(it seems) and when they seem like it's a normal part of life, I'm secretly torn up by it and extremely stressed out by it.
I kind of think that a lot of people identify with him and that's why it's such a successful show. But I like to fantasize that I'm the only one who understands him and I like to think that INFPs are especially on his level since we really understand being in a world where we don't feel we belong.