Nick Groff, a paranormal investigator who's"on a mission to find something fresh in the paranormal field", and paranormal researcher Katrina Weidman who will possibly spend 72 hours together locked down in the haunted locations. They will stay in those haunted places, lots of which may have not been filmed to get a manufacturing company with all the deceased. And some, they'll be investigated for its very first time on tv. Groff and Weidman believe, that"the more they stay, the more the spirits will probably communicate using them and the more information they could gather about the unknown".