Liked it a lot. Written by Richard Price, who I just love. Price wrote Clockers, both the book and the script, Lush Life, which is fantastic and similar to this - surprised this one hasn't been turned into a movie. He also wrote for The Wire.
Chick was definitely out that night to kill herself, also heavy into S&M. They didn't show the sex, but Nas got some razor blade looking marks all over his back that doesn't quite add up yet. Why didn't he bleed through to his shirt? What was actually used to create those marks? Wasn't a fingernail, so what? The rough sex angle is only going to hurt poor Naz though as A) He doesn't remember it, and B) the logical conclusion could be that rough sex turned too rough.
Also, the fact that Naz is Pakistani with immigrant parents is going to play out. He is going to be seriously reluctant to admit to his lawyer he did drugs for fear it will get back to his parents. He'd rather serve time than disappoint them. He is also likely not going to figure out how to explain that he accidentally stabbed the chick at her insistence and instead just gloss over that part. Immigrant's son reluctance to admit they are not the perfect son.
I thought the motorcycle dude was just interested in a race or something. The hearse driver was the really weird one and not quite believable. What was he doing staring in at the girl and why? She certainly didn't come from the back of the hearse. Not quite sure about that one.
Also, big piece of information nobody has brought up yet is putting the cat outside. I don't think she locked the door, there was no relatching of that basement door so killer could have come in and out through there.
No matter who killed the girl, it was a crime of passion - someone pissed off she had shacked up with Naz. Price is a cop-writer, crime-writer. You do not stab anyone 30 times unless you think they wronged you somehow. My money is on the creepy guy who stared back at Naz and the chick as they entered the place. I seem to recall her ducking her head and trying to be really low key. I will be disappointed if the actual killer was not introduced in the pilot.
My wife was suspicious of the two college punks who wouldn't get out of the cab but I don't see how that would be possible.