A return to your twisted imagination.
After the relatively 'normal' goings on in #2 and 3, the fourth episode returns to the surreal roots of the series and dedicates itself to a world of surrealism and rather dark humour.
It might just be me, but I always find that with this type of humour, even if you don't find it amazingly funny, you always feel compelled to carry on watching.
Mabe I under-rated #3 when I first reviewed it. Tonight, I was going to give it a 7, when I realised that I had already given it a 5.
Ah well. Maybe the NG reviewing system could me better. Maybe I should watch an entire series twice before reviewing it.
But whatever the case, after watching that, I'm definitely going to watch #5.
Worthy of watching.