The plot you say? we don't need no steenking plot!

Anyway, what passes for a plot; a mad scientist is experimenting with lobsters, and a nut case sneaks in and feeds them steroids. They grow beyond huge, escape and attack anyone who listens to rock music.
It would have to be improved to qualify as awful.

I didn't actually appear in the thing; I was the narrator doing a voice over. Thank God.