Monster was released in the year 1980。Monster is also called as Humanoids from the Deep, Monstres de la mer, Monster - esseri ignoti dai profondi abissi, Monster (Humanoids from the Deep), Humanoidy z glebin, Humanoids of the Deep, Humanoids de les profunditats, Humanoides del abismo, Grauen aus der Tiefe。

Scientific experiments backfire and produce horrific mutations: halfman, halffish which terrorize a small fishing village by killing the men and raping the women.

Monster actors and actresses include Ann Turkel, David Strassman, Vic Morrow。