AgroupofcastawayswashashoreonadesertedislandinthisItaliansex/goremovie.Theyareunawarethatasex-crazedradioactivemonsterisalsoontheisland.Heattacksandrapesseveralofthewomen,whodiehorribledeathsbecausehisspermisradioactive.Thesurvivorsmustfindawaytoeitherescapetheislandorkillthemonster.