Sea of Souls S03E04

Justine and Craig are hired by Rosie Galt, the manager of an upmarket hotel. She wants them to prove that the hotel is not, as many are beginning to suspect, haunted. The duo are suspect that the job will be a waste of their time, but soon experience strange phenomena: flashing lights, wierd noises, extreme temperature drops and ominous broadcasts on the TV. Could the phenomena be caused by the Rosie's jealous brother, who wants to wrest control of the hotel from his sister, or could they be connected to the newsroom that used to occupy part of the hotel's premises? If it is a genuine haunting, what is behind it?