Hannah Fry entered Celebrity Traitors with a remarkably methodical plan: chart every possible combination of Traitors in a spreadsheet and gradually remove the unlikely options
Her calculations considered relationships, seating arrangements and who travelled together, while lessons from previous UK series helped her identify behavioural patterns
The mathematician expected to remain a Faithful, but her strategy was derailed when she was recruited alongside Maya Jama and James Acaster
She must now pretend to investigate the very people with whom she is secretly plotting.