In "Noroi E: Darkness", you immerse yourself in the shoes of Detective Juárez, a private detective who has been investigating paranormal cases since he was fired from the police department. One night, you receive a desperate call from a mother worried about the disappearance of her son, Oscar García, in a small, bleak town in northern Mexico called Santa Anna.

Arriving at the scene, you find a gloomy environment, decrepit buildings and an atmosphere full of mystery. Your mission is to discover what happened to Oscar and solve the dark secret behind his disappearance.

You begin the investigation by looking for clues in Oscar's room. You find a diary that reveals his recent obsessions with the occult and rituals, detailing what Oscar himself has seen. The townspeople whisper about an old abandoned mansion on the edge of the forest, where satanic rituals are rumored to be performed.

You decide to investigate the [not] mansion for answers. As you enter its shadowy hallways, you are confronted with riddles and eerie visions that challenge your nerves and intellect. You find artifacts related to the occult and cryptic notes that suggest a demonic pact.