The story takes place in the Big Apple in the middle of the 80s.
A kid grows up in an apartment building with his mom and dad, who
are close to divorce.
The dad works at a local TV station as a puppeteer in a TV show he has come up with himself. The kid dissapears on his way to school a morning after mom and dad has yelled at each other again and NYPD gets contacted.
The progress is really slow in the series, where we slowly get to know the surrounding area and the possible suspects. They have done a decent job of recreating the 80s and Benedict Cumberbatch is fairly good at his role.
Since the people the dad is working with are also puppeteers, expect a lot of childish humor and impersonation of voices. Also, the dad seems to be loosing it, imagining the monster his lost kid has drawn, a monster called "Eric". Like the TV Series Ally McBeal we see both real and imaginary characters playing inside the dad's head. Expect to see the monster "Eric" now and then as a side comment throughout the TV series.
I am not sure, but this do not really seems like a crime mystery or crime series , more like a social drama and comment on societal differences. Because of genre confusion and slow progress I give it a half decent rating.