Filipe Furtado’s review published on Letterboxd:
The Juan Piquer Simon touch: making up in shameless gusto what he lacks in basic aesthetic competence. Like most of those low budget revolt of nature films, it is a poor man’s Jaws, in this case with gruesome killer slugs that eat people and their insides. Simon’s nasty streak keeps the film going, even the solution comes packed with destruction. It does runs of energy around the one hour mark.