You just moved into your new apartment in a very big city. After a year of this life, you have almost given up hope of making any friends, be it at work or from any other means. You feel very lonely.
After looking for a peaceful place to spend your time, you find a quiet diner on the outskirts of town. The waitress there is very attractive. She also seems to be the only employee there, ever. You never see anyone else eat there, either. The place is perfect for you.
Making love to her becomes a routine. You go there every night for dinner and to see her.
You eventually make other friends and eat at the diner less and less. After some time, you stop going completely.
At a bar with your best friend, you tell him about the fun you had with the waitress at the diner. He says he absolutely must see her. You take him there one night, but the building is in a state of ruin. The front door barely opens. The grimy insides of the diner are disgusting and behind the counter is a moldy corpse reeking of pus and rot.
When the police come to the scene, they interview both you and your friend. You are shocked to hear the body is of a runaway girl from another province. They tell you this is a homicide and the girl was raped dozens of times after she was killed. The police say they can get a match for DNA and eliminate you as a suspect. You are suddenly very worried.