The Von Erech family of wrestlers had enormous success in the Wrestling circuit of the 80s, making famous the move called Iron Claw (which in fact gives the original title to the film), i.e. a headlock with pressure on different points of the skull. But the family is also marked by bad luck and, above all, by highly competitive and toxic relationships, which several of patriarch Frizt’s children end up not surviving. Canadian Sean Durkin’s film made a lot of headlines for the physical transformation he subjected his actors to, who were naturally forced to achieve the power of a wrestler. Among them, in addition to the protagonist Zach Efron, also the chef of The Bear Jeremy Allen White and the boy of Triangle of Sadness Henry Dickinson.