As much as previous series have hinted that Effy is somewhat detached and wild, there was nothing really to suggest that she was suffering from psychotic depression. If this storyline had been played out since the start of the series, it could have been excellent but sadly it really wasn't. It was full of incidental pieces which resulted in a garbled plot, with a bizarre carnival, a completely unnecessary bicycle crash and resultant fallout from that, and finally a completely mistimed appearance from Will Young. Oh, and of course a realistic comeback from Cook. It would have been far better to have documented her slowly, spiraling decline into attempted suicide rather than spring it on the viewer like a jack-in-the-box. And again, we see characters acting like complete *****. Shame. Personally, the only character I find bearable is Naomi, well, and possibly JJ in some respects.