Apart from some gratuitously gruesome images (but probably credible within the real life context) this was a brilliantly conceived plot with all strands resolved convincingly. Gripped throughout a binge watch of all 3 series. Effect of deep trauma explored in depth in one personality who had to become someone else to cope but still couldn't escape. Very satisfying ending. Anna Friel demonstrated consummate depth and breadth of acting in this series. Just an amazing performance.