Answer the following question: I am a movie director and I just received the following movie plot. Could you help me answer this question? If not, let me know by writing "Not answerable". Plot title: Humanoids from the Deep Movie plot: In the Pacific Northwestern town of Noyo, many fisherman have their livelihood endangered due to a new salmon cannery being built which many of the townspeople support. Hank Slattery (Vic Morrow) and several others are for the cannery because it will make life more prosperous for them. Slattery is a racist and takes out his biased aggression on a local fisherman Johnny Eagle (Anthony Penya) who is against the cannery and wants to remain an independent businessman.In a fishing boat, a group of fisherman catch what appears to be some kind of monster in the netting of their boat. The young son of one of the fishermen falls into the water and is dragged under the surface by something unseen. Another fisherman prepares a flare gun, but he slips and shoots it accidentally into the deck, which is soaked with gasoline dropped earlier by the boy, causing the vessel to burst into flames and then explode; everybody onboard is killed. The explosion is witnessed by Jim Hill (Doug McClure) and his wife Carol, who begin to wonder what is going on here, especially when Carol's dog goes missing during the following night and the two of them find its dismembered corpse on the nearby beach.The next day, teenagers Jerry Potter (Meegan King) and Peggy Larson (Lynn Schiller) go for a swim at the beach. Jerry is abruptly pulled under. Peggy believes it is simply a prank until she discovers his horribly mutilated corpse. The screaming girl tries to make it to the beach but she is attacked and dragged onto the sand by a monstrous figure. The humanoid thing tears off her swimming suit and rapes her.The following night on the same beach, two more teens are about to have sex in a small tent when another humanoid monster claws its way inside. It brutally kills the boy and chases the girl onto the beach. She manages to outrun her assailant but then runs straight into the arms of yet another humanoid. The monster throws her onto the sand and rapes her.Meanwhile, Jim becomes concerned because many other dogs in the town were killed the same... My question: What do the Anglers catch?
Answer:
a monster