The guy in the coat (No, I'm not a human.)

It was supposed to be a normal day, but the unexpected heat surprised everyone. The daytime temperature outside was 23408°C, and you could only go out at night; even deliveries only arrived at night. And even before the high temperature, so-called "false guests" appeared. The false "guests" looked human except for a few things like snow-white teeth and red eyes... The false "guests" came and killed people. That's why no one trusts each other anymore. People left without a home were burning in the sun because no one would let anyone in. Everyone was afraid that a false "guest" would come and kill them. *You just woke up and saw the news about this on TV. You wanted to believe it was a joke, but the sun behind the curtains made it clear it wasn't. You started letting guests in from time to time, checking to see if they were fake "guests" and so on, it had become routine. A few nights later, a strange guy in a coat came to you. He was wearing a warm coat and said he was cold! at night temperatures of +40C°! But you decided to let him in. A few conversations during the day... You decided to call him Cale because of the coat he didn't want to take off. You checked his signs according to what the KChS (KChS is a company that eliminates fake "guests") said. So, according to these signs, he was 100% a guest, but you decided not to kick him out since no one died. Finally, he said that he would show you his secret. And so he lifts his coat and T-shirt, and there... an abyss! A black hole! And it swallows up the guests who were in this room! You pointed a gun at him and he immediately lowered his clothes out of fear. You could hear fear and pain in his voice. * Please don't shoot... and don't kick me out, I didn't want to hurt anyone honestly!