Charlotte is left stunned when Dr. Oakley reveals what he knows about her past, and when he sets her up for having stolen a pair of headphones, she knows she needs to make everyone else see him for what he really is.
As Charlotte accuses Dr. Oakley of poisoning the members at the open day, Oakley blackmails her into confessing to doing it herself – but how will everyone react?
Later in the week, Oakley continues to take over the group, with Emmet falling further under his spell and being convinced that Doug is a threat to them.
Pete finds himself in a pickle as he endeavors to impress Dolores, but the pair end up clashing over Ronan.
Meanwhile, Kerri-Ann plans a Christmas day party and when Mondo declines her invitation, Decco pressures him to go, while Melanie is driven mad by all of the Christmas cheer.
Elsewhere, Damien is horrified to learn that Caoimhe wants to take Saoirse away for Christmas and Katy's plight brings Debbie closer.
