On a remote, forested Greek island, the biggest private rave party is taking place, drawing people from all corners of the globe to participate in this sad example of modern-day debauchery. However, one of the guests, a young man who has been bullied by a group of other guests on the island, has a rather peculiar plan : find an ancient hotel lost on the island to perform a mystical ceremony. At the cost of his life, he succeeds, and some members of the most powerful family of mythological monsters are freed from the underworld, guided by the eldest of the clan, guardian of the underworld : Cerberus ! Bound by their oath to obey the orders of whoever frees them, they will deal with those who harmed their benefactor, as well as the many other bad people partying and defiling this ancient island. Nevertheless, there is one young woman on this island, different from the others, the only one who has always been kind, named Gloria Salah. She will fight for her survival, but it seems that her fate is linked to that of these monsters... who are only the vanguard of a new era to come !
