The Beast Within (1982) - Official Trailer

18-year-old Michael MacCleary -- the progeny of an unholy union between his mother and a swamp beast -- is on the verge of becoming a man. And as the inherited evil in his blood gnaws at his soul, Michael must return to the swamp to uncover the terrifying identity of his father -- before his nasty natural tendencies force him to feed on the locals! Starring Ronny Cox (Robocop), Bibi Besch (Tremors), Paul Clemens (Communion) L.Q. Jones (The Wild Bunch) and R.G. Armstrong (Race With The Devil).