Hannibal was recommended to me in various occasions through the internet, and after finishing my last series, I decided to give it a try. I'm not up to date yet, but this is what I have to say so far:
It's really good. The plotline is extremely interesting, and it's hard to get bored watching this. Also, the show itself has amazing cinematography, and the characters are well-thought and three-dimensional.
But there's a reason I haven't recommended it so much until now: it's graphic. It's probably the most violent thing I've ever watched. But I'm mature for my age, and I'm not easily freaked out by these sort of things. Still, I'd leave it up to the teen to judge if they feel comfortable watching it. If after the ending of the first episode they're up to it, then it's okay. But don't have anybody younger than fourteen or thirteen watch it.