With a nation on tenterhooks and hanging on every cliffhanger, its success hinges entirely on the secrecy of the participants.
And while BBC bosses have gone to extraordinary lengths to keep the outcome of Celebrity Traitors under wraps, they appear to have their work cut out for them this year.
A string of incidents has left show bosses increasingly on edge, with fears of a potentially catastrophic leak mounting despite stringent non-disclosure agreements designed to keep the closely guarded secrets under lock and key.
Now, the Daily Mail can reveal one breach of the rules involved Richard E. Grant and happened four months before the show even launched, with a BBC insider telling this newspaper: 'Players have once again been reminded about keeping the outcome of the game to themselves following a number of incidents'.
Richard did the unthinkable by announcing to the group he was a Traitor just hours into the show, before being banished at the first roundtable.
And BBC presenters Mark Radcliffe and Stuart Maconie have said it wasn't the first time Richard blurted out he was a Traitor when he wasn't supposed to.
BBC bosses have issued a fresh warning to Celebrity Traitors cast over potentially catastrophic leaks
Julie Hesmondhalgh, who was a Faithful and was banished during Friday's episode, has revealed she was forced to remove herself from the Celebrity Traitors' WhatsApp group in order to avoid spoilers from her own co-star
They say Richard told them during an interview in June, adding that their 'brilliant producers' were forced to cut parts of the interview due to his slip-up.
On a recent episode of their Radio 6 Music show, they shared: 'People were saying when Joe Lycett said to him on Traitors, 'What are you?' and he says 'Traitor' that was his downfall, but if they had been listening in June, you would have heard that he revealed it earlier, so we took this out because we didn't want to spoil your enjoyment.'
Now that Richard's fate has been revealed, Mark and Stuart played the original clip from the interview, where they asked the Oscar-nominated star if actors have an advantage on the show.
He responded: 'You would think so, but the very nature of being an actor is that you rely entirely on the camaraderie of the people that you are working with and to trust them, and when you are a Traitor it's far more challenging than you might anticipate.
'You would think it would be easy for actors; I think the reverse is the case.'
Contestants on The Traitors, both celebrity and civilian versions, face potential lawsuits and fines of upwards of £100,000 for breaching their non-disclosure agreements (NDAs).
The celebrities signed the documents before heading to Ardross Castle in Scotland to film the series in May, with Ross Kemp saying the NDA was 'longer than the Bayeux Tapestry'.
The Mail understands that the BBC are aware of Richard's interview slip-up and will take no further action.
Elsewhere, Julie Hesmondhalgh, who was a Faithful and was banished during Friday's episode, has revealed she was forced to remove herself from the Celebrity Traitors' WhatsApp group in order to avoid spoilers from her own co-stars.
Contestants on The Traitors, both celebrity and civilian versions, face potential lawsuits and fines of upwards of £100,000 for breaching their non-disclosure agreements (NDAs)
Appearing on Monday's BBC Breakfast, she said: 'People were sharing who'd won at one point, and me and a couple of other people removed ourselves because we just don't want to know.'
Meanwhile, Joanne McNally, who is a Faithful, confirmed on her podcast she knows who wins.
And news of who made it to the final has reportedly been leaked over the weekend by someone close to one of the players.
'It's vital the leaks don't make it to gossip forums online and on social media where fans can find the information,' one source said.
Sarah Fay, the show’s executive producer, previously confirmed the team were rocked by Richard's Traitor admission as it went against the rules of the game.
Recalling the moment it happened, she said: 'It was a mixture of a little bit of sick coming up in my mouth and a punch at the same time.
'We’ve never had anything like that happen before.
'I mean, what? Within five minutes of being out of the Round Table, he’d already mucked up. I still can’t believe it now. Never in our wildest dreams did we think that we’d have a Traitor admit they were a Traitor five minutes after the Round Table.'
In the handover of the Traitor robes after his blunder, Claudia Winkleman reminded Richard he was obliged to keep his identity secret but added: 'Can I say already: iconic.'
The Daily Mail has contacted the BBC for comment.