Central to the theory is a framed “family tree” of all 22 contestants, on display in the castle. The edges are inscribed with words in Latin, which roughly translate to:

“Beware whom you trust as your own blood. The sharpest knives are often handed to the table by faithful servants. Among intimate friends lurk the most secret enemies; take care not to let your confidence become the cause of your downfall and agitation.”

The Traitors theory: Could everyone know someone in the castle? Social media sleuths have noted that Hugo and Harriet have both worked in England as barristers and may have crossed paths. Could Rachel and James be siblings? Jade and Jessie, a couple? Ross and Netty, husband and wife?

Contestants even speculated that Fiona and Hugo might be an item, though she quickly clarified: “We’re not — I’m a lesbian.”

It’s worth remembering that this wouldn’t be the first time producers have cast contestants with pre-existing relationships — season one had couple Alex and Tom, and season two featured mother-son duo Ross and Diane.

Ellie and Ross are a couple

This The Traitors fan theory is heating up, centred on psychologist Ellie, 33, and sales executive Ross, 37, who both live in London. Social media sleuths noticed that the pair seemingly went on holiday together, posting from the same destination at the same time, and later spotted Ross liking Ellie’s job promotion on LinkedIn.

“Even if they are a secret couple or have been hanging out, what we do not know is if they met on the show or if we’re about to see a romance unfold on The Traitors,” explained Indigo Stafford on her popular @indigoreports platform. “I believe that would be the first time we’ve ever seen that.”

Indigo noticed existing chemistry between the two on the train, but some fans are convinced they’re already a couple, hiding it from viewers and contestants alike.