Spider trapping a fly.

The spider had caught the fly out of the air with a bit of string. Just hauled it up and started to build a web around it to keep it strung up, cocooning it at the same time.
It had been going on for about 1.5 hours when I filmed this. It wasn't over by a long shot. It took at least another 30 minutes before it stopped struggling.
Must've been a hell of a long time for the fly.
I've never seen this before and always thought it would be rather quick.
Definitely not!
I always thought the buzzing sound was made by the wings, but they were pretty well wrapped up.
At around the 3:48 mark, there's another spider strolling along in the bottom right.