Even her turn in "Alma's not Normal" is excellent.
I have a feeling today's writers are stuck in the SAME tropes. This one uses at least 3 of them. The bratty kid, but wait, there are two in this one. The dementia riddled horrible father, who, surprisingly seems to have clarity at the right times, and of course, the bad bedfellow.
This was a, let's throw a lot of stuff at the wall and see what sticks. Unfortunately, this turns into 6 episodes of non-sense, with the typical 'baddie' guy and his voice, deciphering from his first scene, that he is not just a passing character whom information needs to garnered and forgotten about. Why can't these writers pick anyone of the real life stories that are so hard to believe these days, and build on this?
Siobhan is Liz. She is entrusted with a family in the witness protection and as zero spoilers will tell you, this goes tits up. Liz's sister is seen for a scene and then dunzo...Her superiors are awful humans, those of which can not be modeled on anyone remotely passable (and yet, there are 3!!), all awful. This is doing the laundry watching...hardly engaging.