LONDON — At 8:30 p.m. on Monday, two buddies have been huddling outdoors St. Martin’s Theater in London’s West Finish doing one thing nobody has for 14 months: arguing through the intermission over who was the assassin in “The Mousetrap,” Agatha Christie’s long-running whodunit.

“I’m satisfied it’s the luxury lady who runs the lodge,” mentioned Lockie Chapman, 40, a singer, earlier than instantly altering his thoughts.

“Really, it’s the foremost!” he mentioned. “Or how about that shifty Italian dude?” he added.

“The shifty Italian dude?” replied Rah Petherbridge, 37. “However he might be a pink herring!”

Such debates have rung out outdoors the “The Mousetrap” ever because it debuted in 1952, however these accompanying the present’s 28,2 hundredth efficiency on Monday have been vital. They marked the reopening of the West Finish.

Since March final 12 months, when the coronavirus pandemic shut down Britain, the nation’s theaters have been successfully darkish. A number of exhibits, together with “The Mousetrap,” tried to come back again final fall, just for a second lockdown to maintain them from even making it to rehearsals.

A number of tried once more in December, together with “Six,” the hit musical concerning the wives of Henry VIII, however they managed only a handful of performances earlier than they have been shut as soon as extra. Theaters needed to carry out to on-line audiences in the event that they wished to maintain working.

Monday’s comeback felt prefer it was really everlasting, 15 viewers members mentioned in interviews, many highlighting Britain’s speedy vaccination marketing campaign as the rationale for his or her optimism. (Over 55 % of the British inhabitants has received at least one dose, a better proportion than in the USA.) A small however worrying surge in coronavirus circumstances in Britain, linked to a variant first identified in India, didn’t dampen their temper.

“I actually assume we’re again for good this time,” mentioned Matthew Lumby, 48, a civil servant. “I wouldn’t make sure we’ll be with out face masks for some time, but when sporting one’s the worth of being again in a theater once more, it’s a small one to pay.”

The temper was related on the close by Royal Opera Home, which additionally reopened on Monday, with Mozart’s “La Clemenza di Tito.” “I really feel assured this time it’s for good,” mentioned Katie Connor, 40, as a number of big Rolls Royces pulled up with glamorous operagoers.

“I’m simply so joyful to be again,” she added. “I’m fairly positive I’m going to ugly-cry for the entire two hours and 25 minutes of the present.”

England’s theaters are usually not instantly allowed to return to their prepandemic state. For now, exhibits can open solely at 50 % capability, and viewers members should put on face masks all through performances.

Social-distancing guidelines are purported to be eliminated June 21, permitting full capability, however on Friday, Prime Minister Boris Johnson warned that the date might be pushed back due to the current rise in circumstances.

“I’ve to degree with you that this new variant might pose a critical disruption to our progress,” Johnson mentioned.

It might be “financially bumpy” for “The Mousetrap” if distancing weren’t eliminated quickly, mentioned Adam Spiegel, the present’s producer, however he insisted that he would preserve the present open it doesn’t matter what, to present the actors and crew work. “It’s the suitable factor to do,” he mentioned.

A number of different main West Finish exhibits are reopening this week, together with “Six” and “All people’s Speaking About Jamie,” successful musical a few boy’s makes an attempt to grow to be a drag queen, with a bunch of others to come back throughout England in coming months. However on Monday, the highlight was left largely to “The Mousetrap,” which holds a Guinness world file for the longest-running play.

It was “a bit weird” for “The Mousetrap” to be on the vanguard of theater’s return, Spiegel mentioned. Critics have been calling it “an anachronism” since at least the 1970s, missing the technical bells and whistles one would anticipate of a contemporary manufacturing. However Spiegel mentioned that it was the very best play to reopen the West Finish, because it had grow to be a logo of town.

“It’s been by means of all of the ups and downs of British lifetime of the final 70 years: terrorism, financial recessions, this,” he mentioned. “There’s not a scientific reply to why it ought to be first. It simply feels proper.”

The play hadn’t wanted a lot rewriting to reduce coronavirus dangers, besides the removing of 1 kiss, Spiegel mentioned. Agatha Christie wrote the play simply after World Battle II, he added, when British folks “weren’t that kissy-wissy.”

“So it happily lends itself fairly nicely to social distancing,” he added.

Backstage, although, there had been a number of adjustments. Two casts have been employed, so if one has to isolate, the opposite can step in. Forged and crew additionally needed to keep distant, which meant the present’s wind machine might not be used, because the particular person working it might have needed to stand subsequent to an actor backstage.

Different exhibits are adopting related measures. On Monday, the director Michael Longhurst began rehearsals for a revival of Nick Payne’s relationship drama “Constellations” on the Donmar Warehouse. He employed 4 two-person casts — together with well-known names like Zoë Wanamaker — to attempt to make sure that the present wouldn’t endure any coronavirus-induced closures, he mentioned. “It’s such a sophisticated balancing act for each manufacturing,” he added.

Different theaters throughout England are equally targeted on small exhibits with decrease coronavirus dangers for now. The Theater Royal in Bathtub in southwestern England, as an example, is reopening Could 25 not with a play, however with Ralph Fiennes performing T.S. Eliot’s “Four Quartets.” The efficiency will then journey round England.

England’s theatrical reopening places it forward of Europe’s different main theater facilities. In Paris, theaters might open from Wednesday, however they have to end by 9 p.m. and are allowed solely 35 % capability. Some theaters have mentioned that they will’t reopen beneath these situations. Others have mentioned that they will’t as a result of they’re occupied by college students protesting a lack of support for arts staff.

In Berlin, theaters are additionally allowed to reopen on Wednesday, however solely outdoor.

Within the West Finish, most theater house owners and producers appear joyful to simply accept restrictions, together with the potential use of coronavirus passports to ensure entry. “No matter is important to restart folks’s potential to get pleasure from theater I’m OK with,” Spiegel, of “The Mousetrap,” mentioned.

Many within the business understand that will probably be a very long time earlier than theaters are again to their previous selves, using hundreds of freelancers. Some job losses are solely simply rising. In April, The Stage, Britain’s theater newspaper, reported that “The Phantom of the Opera” would reopen July 27 however solely with its touring orchestration, reducing the variety of musicians virtually in half, to 14, from 27.

“It units a nasty precedent for the entire sector,” Dan West, a trombonist who performed within the present earlier than the pandemic, mentioned in a phone interview. “Each small producer will say, ‘In the event that they don’t want brass, I don’t,’” he added.

Throughout “The Mousetrap” on Monday, any worries appeared removed from folks’s minds. Many viewers members took off their masks to sip drinks through the present, then left them off as the stress ramped up onstage, with Detective Sergeant Trotter (Paul Hilliar) quizzing eight potential murderers.

Ultimately, the perpetrator was revealed, and several other viewers members gasped. “See, I instructed you!” one shouted, being shushed by these round him.

“The Mousetrap” ended simply had it had for each one in every of its earlier 28,199 performances. “Thanks a lot to your unbelievably heat reception this night,” Hilliar mentioned, after a standing ovation from the half-full theater.

“Now, you might be our companions in crime,” he added, “and we ask you to maintain the key of whodunit locked in your hearts.”