I thought this was reasonably good series until the last episode of series 2
which showed very poor writing. If Debbie drowned her patient in her own therapy pool, how would she explain it? Ay least she would be subject to an investigation. Of course she was supposed to be crazy but still she had managed to evade detection so far. Ally was being ruthlessly investigated and she had only done her job by reporting things. I often get the impression that writers get tied of their plots and just want to wrap thing up simply.