I was thinking of some sort of group of Back bench pro brexit Conservative MPs (UKIP Lite) sore at having lost the vote stopping the Government from operating and giving the Chief Party Whip a wedgie and ultimately forcing a vote of no confidence which results in a snap election being called to break the deadlock.
It's possible, I can't see Cameron being stupid enough to run a campaign as badly as May did and letting Corbyn make up that 40-odd point gap in the polls either though. May basically threw away every advantage she had with that ridiculous manifesto, her u-turns and her poor performances when she had to go without a script. I didn't particularly like Cameron (and I really don't like May while I'd happily watch Corbyn bleeding out) but I just don't think he's shit enough to give Labour the gains they got against May.