After a series of unexplained disappearances take place at a castle, a group of investigators try to crack the case. Some of the investigators end up disappearing, themselves, while others remain baffled as to what is happening. Feeling deep empathy for the victims and their families, Blaine and Laura decide to investigate, themselves. They are not professional investigators by any means, but they have brains and determination. They book a date to stay overnight. But after discovering secret passageways, unsettling noises, and other suspicious occurrences, they begin to question whether they'll ever make it out of there.