Overall I think the season was ok. It was too formulaic and they tried to mimic the first movie way too much. Add to that cardboard acting/bad script and unlikable characters and you have a meh season. Some episodes were better than others but very low kill count for a series. If the writers need to know how to do a serial killer tv show, they should watch Harper's Island for inspiration.
@jensequel Loved Harper's Island! I also thought there wasn't enough slashing for a slasher show.