To spend a summer afternoon, four friends decide to go to a 19th-century mansion that is falling into ruin and has not been inhabited for years, shrouded in a dark, mysterious aura, fueled by local legends, which for many years covered this place like ivy. What bad can happen? However, entering the gates of this estate, they unwittingly became victims of intrigue, a bloody ritual repeated every year in which they will have to pay a higher price than death to learn the Secret of House Woodville!