I have this smell in my kitchen...

[Jaycee]

Could there be a mouse trapped in your walls?

[nickle730]

I was thinking along the same lines as Jaycee... dead animal in the wall cavity? Mouse, rat, possum, neighbour...?

[RainbowRiver]

Check the back of your fridge for a fried mouse... Usually they end up in the water catching tray or in between coils

[Pholi]

Mmm... we had that smell in a cupboard a while back - At first it was distinct but not really unpleasant, and over the next three days developed into something utterly disgusting. Eventually found a rotting rat carcass in the roof space above the wardrobe. Check the back of the fridge NOW for dead, mouse, cos it only gets worse the longer you leave it.

[Tinks]

Ew! It doesn't smell like dead animal though. I'm going to have to wait for DH to come home to move the fridge. I hope there's nothing dead behind it.