As someone who has lived a very similar story, this was cathartic, chilling and way way close to home. Asher Keddie was amazing, as was most of the rest of the cast.
Very much worth a watch. The negative reviews for this haven't lived a situation like this and don't know how illogical some of the moves are that are made. "My Joe" had even his children and sisters fooled and had a lot of things that seemed to back him up. After me, he went on to another 3 people before meeting a bad end.