replied 2 years ago.
We'll call the guys JA,b,c, and d, in the order of their pictures from top to bottom.
The Creeper hasn't eaten awhile, so he is very hungry to begin with. He has suffered the loss of an arm in a recent struggle with some victims and he needs to replace it. These four guys have entered the pool for practice and they don't know they are locked in. They talk and laugh and engage in some horseplay. Guy b gets pushed in the water. The Creeper notices he has very muscular arms, and thinks he would like to have those arms. He has removed an underwater grate so he has a secret entrance to his lair in the boiler room. He goes to the secret entrances, adjusts all the valves as he enters, and slips into the pool.
Guy b swims underwater as he contemplates getting even by dunking his friends. Suddenly something has him by one leg. He thrashes and kicks, but is steadily pulled to one end of the pool. Now he has trouble holding his breath and starts to get scared. But before he knows it, he is whisked through what seems to be some kind of tunnel, and is tossed on the floor of the boiler room. He sucks in a deep breath, then looks into the face of a horrible monster. He uses the air he just breathed in to scream. But no one can hear him.
The Creeper studies the guy. He sniffs him all over. He licks his bare skin. He sniffs, then licks the swim trunks, but finds the texture distasteful. But he has consumed many humans before, so knows the meaty buttocks and tender private parts are under the trunks. He decides that he will take the guy's strong arms for himself, but eat the rest of the body for nourishment. The guy is still in a panic and struggling. The Creeper plunges a knife into his throat and waits.
When the guy is still, the Creeper tears in. He's so hungry that he bites into the lower body, swim trunks and all. The trunks tear in his powerful jaw. He spits the scrap of material out, and works the tender morsels around his mouth., savouring them. Hunger gets the best of him and he chews them up and swallows them. Next he tears off what is left of the trunks on the guy's backside and bites into the meatiest part. He chews and swallows quickly now, sating his appetite as fast as he can. He eats everything but the arms. Now that he has some energy, he can begin the process of morphing the arms onto himself.
Up in the pool, the other three guys get worried when their friend doesn't surface. They dive in to look for him, but find no trace. In the meantime, the Creeper watches from his secret entrance. He's still hungry, and now he has powerful new arms. He notices that guy a seems meatier than the other two. After his first meal, he feels strong enough to take on all of them. He swoops in and grabs guy a, then drags him toward the tunnel. He swims rapidly. The other two follow, trying to help their buddy without knowing they are falling into a trap.
By the time the other two end up in the boiler room, guy a is unconscious on the floor. The others look with horror at the Creeper. They stare at his walls, which are lined with sewn together bodies with missing parts. A few of them are still alive and squirm in agony. The floor is covered with blood, some fresh . The Creeper grabs guy d and begins choking him into unconsciousness. His friend first tries to help, then tries to get away, but there is no escape. When guy d passes out, the Creeper chains him to the wall among the others. He will save him for spare parts. He now goes after the last guy who is thrashing at the locked entry to the pool. The Creeper claws at him and drags him to the floor. The guy is bleeding., but keeps fighting. The Creeper sinks his sharp teeth into the guy's throat and takes a long drink of blood. The guy is lifeless, and the Creeper chains him to the wall, too.
The guy on the floor starts to wake up. He looks up to see the wall. He notices that the bodies there are missing arms, legs, eyes, and that some have been opened up to remove internal organs, then sewn up again. Then he sees his two friends there and he screams. The Creeper holds him down, sniffing and licking. Yes, this one will taste good, too. This time he's not in such a hurry, so he pulls off the swim trunks and tosses them aside. He chomps off the genitals and slowly chews them. The flavour makes him salivate so much that bloody drool runs down his face. He swallows them, then goes on to enjoy the rest of his feast, bite by bite. When he finishes, he goes up to the pool to unlock the doors, so his next victims can enter.