Claudia, a 25-year-old with serious insecurities, rents the upper floor of an isolated house. There she meets Letizia, the owner, a fascinating woman with a dark past who introduces her to metaphony, a technique that allows her to communicate with the dead. That innocent game soon turns into a nightmare: after discovering the terrible secrets hidden in that house, Claudia will have to survive Letizia’s madness, determined to sacrifice her to supernatural entities.