Please please please someone help.
On Sunday night we suddenly started getting lots of big black flies appearing in our kitchen. It's late Oct for goodness sake and thought they died or something in the winter. They seemed to be coming from under a plinth so we took it out expecting a dead mouse or something.
But there is nothing under there.
We sprayed copious amounts of fly killer and vaccummed the little feckers up. Been out for the day just got back and now there are another 30/40 dead or dying all over the kitchen. Still can not see where they are coming from.
Any ideas please????