Normally, subplots weave in and out of a tapestry, coming all together to form ONE big picture in the end. In this case, the subplots are so far removed from the main story, that it feels like you're constantly changing the channel and watching three (sometimes four) distinct tv shows. They barely--and I mean BARELY--connect by the thinnest thread, resulting in a very annoying experience. Especially when two of those three separate 'tv shows' you have zero interest in. By episode 3 I started fast-forwarding through the 'brother' show, and by episode 5, the 'friend' show.
The main plot was often plain stupid. It tried to be 'Damages' with Glenn Close, but miserably failed. Zelwegger's role tried to be Stella Gibson from 'The Fall' but also failed. There was a nugget of premise that kept me watching through to the end, but I don't recommend wasting your time on it. They definitely missed the mark on this one.