Sketch: Jeremy Corbyn The Movie is reaching its climax, check out the montage

From a protest outside parliament, to the weekly parliamentary Labour Party meeting to the House of Commons itself, Jeremy Corbyn was being simultaneously set upon by his own MPs

The ending of Jeremy Corbyn: The Movie is still anyone’s guess but we have had the climactic montage scene.

It happened in fearful symmetry at ten past six on Monday night when, all around Westminster, the Labour Party went the full Les Miserables.

It was then that the Labour leader was standing at the despatch box of the House of Commons, telling Theresa May that he had been “a robust critic of the Russian govt for more than 20 years.”

Amidst the howls of derision he permitted an intervention from one of his own MPs, John Woodcock, who told him what he was saying “is just not true”, and read an excerpt of an old Corbyn article in the Morning Star, warning “the West is in no place to take the moral high ground over Ukraine’s crisis”.

Outside the House of Commons, at this very moment, over the road on Parliament Square, hundreds of protesters, mainly Jewish but not all, had gathered to register their rage at Labour’s antisemitism crisis, the blame for which they lay at Corbyn’s door.

Stephen Timms was there on the green, the Labour MP for East Ham. So was Jonathan Reynolds, Labour MP for Stalybridge, Hyde, Mossley, Longdendale & Dukinfield. And so were Peter Kyle, Neil Coyle, Wes Streeting, Chris Leslie, Margaret Hodge, Liz Kendall, Harriet Harman, Mary Creagh, Jess Phillips, David Lammy, to name just the ones I spotted, listening in quiet respect as speaker after speaker tore into their party and their leader.

Most of them were on their way to the traditional Monday evening meeting of Labour’s MPs in a committee room round the corner from the Commons. There, Wes Streeting, Luciana Berger, Yvette Cooper and others gave rage-filled speeches about Labour’s antisemitism problem, and the leader’s failure to deal with it.

It is a full-blown crisis. It doesn’t need to be said that all over the world, and throughout human history, marches on parliament, indeed protests against governments of any kind, tend to be just that – protests against government. People don’t gather en masse to protest against opposition. It is profoundly abnormal.

Naturally, there were not one but two protests gathered there. A second, smaller group, “Jewish Voice for Labour” waved “Oh Jeremy Corbyn” flags. The even tried – and failed – to drown out the speakers with chants of “Oh Jeremy Corbyn.”

It is a decent enough reminder of how Labour’s land lies. Jeremy Corbyn is certainly used to operating with an openly hostile parliamentary party. It is indeed the norm. He can only hope the problem will quieten down and go away. As for the moderate MPs, they know that seeking to topple him will be futile. They have tried once already.

If they are considering a new tactic, well, the evidence on a mad Monday night would intimate that the moment to use it might already be here.