The film homes in on 18-year-old Alex who’s been a fan of the Arthur fantasy film series since he was a child. When his close-knit group of friends surprises him with trip to an abandoned house where the film was shot, they unwittingly walk headlong into a twisted, mortal trap. What was once a childhood dream soon turns into a very real nightmare...

Alain and Marie moved to the suburb house of their dreams. But the real estate agent warned them : what is in the basement may well change their lives forever.