I would definitely watch a short 3 part Netflix series about a man's decent into insanity in this heat as he starts off killing a few midges before becoming obsessed.
Part one is fairly tame. Kills a few. Wakes up with a few bites. The heatwave kicks in.
Part two he's becoming obsessed. Can't sleep. Starts hearing buzzing noises that aren't there. Goes round his house hunting them down. Stays awake with the light of his phone on to trap them.
Part three. He can't catch this one midge. Starts making tiny little traps. His wife tries to reason with how ridiculous it is as he spends all day in his shed making half centimeter traps. He can't stay awake so he takes stuff which only adds to his descent into the abyss. He's been awake for days.
We cut to the end where he's in hospital, he doesn't know why he's there. He can't comprehend what he did that night. His brain rewired so he didn't have to deal with it. They're all dead and it was his fault. The midges in white coats trying to help him are lying to him. It's a trick. He knows what he now needs to do.