A new White Room twist will give Conor and Luke S the chance to steal 50K from the Big Brother 2012 prize fund tonight , but they'll be evicted if they do.

On Tuesday, Conor, Luke S and Sara moved in to the special White Room for a four-day task, and were told that they last person to leave would recieve a pass to the grand final.

Twenty-four hours later, Sara became the first person to be eliminated from the task when she chose to return to the house, leaving Conor and Luke behind.

Now Big Brother will up the stakes and find out where their priorities lie with a new twist.

tonight's live eviction show, Big Brother will tell Conor and Luke that one of them can receive 50K - half of the winner's prize fund if they leave the show immediately. The other person gains a place in the final, set to take place on Monday 13th August.

However, if neither of them take it, the grand prize will remain at 100,000 and seperate will determine which of them will get the golden ticket.

This means that there will potentially be a double eviction tonight, as either Ashleigh, Becky, Deana or Luke A will get booted out by the public vote.