An American criminology expert on death row for killing his wife (and actually being guilty of it), tries to do good in his last year's by helping solve cases involving injustice.

Awesome start.

Now you have a tutor who through a comedy of errors thinks her vicar employer is hiding his sons child porn, and ends up being locked up in his basement, now our POV character (a British journalist who had a connection with the tutor), notices her disappearance so she taps the death row Sherlock to help find her.

Great again, it would have been amazing if we didn't go back to the vicar and their house and most of the season was about the Sherlock rip off using his skills to remotely help figure out what happened.

Thats not what happened though, instead we got long winded mystery box shit and an ending which I can only describe as "oh shit we only have one more episode to wrap this up? Well that's not enough time, oh well"

The actors saved the show, desire the writing. Tucci and Tennant we're absolute standouts.

Moffat had a reputation for creating a great setup for shows, but then shitting the bed when he has to actually develop it (see Hyde and Sherlock)

Lazy writing, pandering and nonsensical plotting made for some frustrating watching