On Monday night, Gina, Dexter, Wolfy and Dan were put up for eviction after the housemates nominated live and face to face.
But Wednesday night saw a Big Brother 2013 secret revealed, in the form of the safe house.
Rather than leaving the show tonight, two housemates would actually be facing a 'fake eviction'.
They'd leave the house after Emma announced their names and both them and their fellow housemates would be led to believe they had left the competition.
But in reality, the chosen two will be living a life of luxury in the safe house, which is situated off the garden of the main house.
Over the next week they'll be able to watch and listen in on what their fellow housemates say and do, as well as being immune from next week's latest nominations.
Either Gina and Dexter or Dan and Wolfy could enter the safe house this evening, with us viewers voting overwhelming to move plotters Dina into hiding.
See what they get up to nightly on Channel 5.
Browse pictures of the safe house below...