Strange noises would be a possible horror element. Maybe creaking sounds like old doors opening and closing by themselves.
One possible horror element could be the architecture itself. The temple might have dark, long corridors with few sources of light. It could be easy to get lost in there, and that disorientation in a somewhat foreboding building can be terrifying. Additionally, there could be stories of cursed objects within the temple. These objects might be associated with rituals that went wrong in the past, and their presence could be felt as an evil or negative energy by those who enter the temple.
There could be many elements to the Masonic Temple Khadki horror story. It might start with the history of the temple. Maybe it was built on an ancient burial ground or some place with a dark past. Locals might talk about how those who entered the temple at night often had a sense of dread. There could have been stories of strange symbols appearing on the walls that seemed to have a life of their own. Some might even say that there were voices whispering in languages no one could understand, creating an overall feeling of horror and mystery around the place.
There are stories about masonic lodges being haunted. Supposedly, because of the long history and the many secrets held within their walls, some believe that the spirits of past members who met unfortunate ends during rituals now haunt the places. But in reality, there is no scientific evidence to back this up. These are likely just tales passed down to create an air of mystery around the Masons.
Ghosts could be a possible element. In 1928, superstition was still quite prevalent, and a horror story might involve the apparition of a vengeful spirit.
The color blue itself can be associated with coldness and a sense of unease, which sets the mood for horror. Maybe there are stains on the couch that look like blood or some other mysterious substances. The texture of the couch could be rough and scratchy, giving a feeling of something wrong. Also, it could be that things keep disappearing when placed on the blue couch, like a small object vanishes into thin air.
Ghosts or spirits haunting the suburban homes could be an element. Perhaps a tragic event occurred in the past in that area, and the spirits are now restless and causing fear among the residents. For example, if an old house was the site of a murder, the ghosts of the victim or the killer might be present in the 'Matt Lewis Suburban Horror Story'.
The list might have some sort of curse associated with it. Maybe just reading the list unleashes a series of terrifying events. Like it could summon dark spirits that start to torment those who found the list. These spirits could cause hallucinations, making the characters see their worst fears come to life.
One possible element could be a creepy old mansion. It might be abandoned and full of dark corners where strange things happen.
The waiter himself could be a key element. He might have a past he doesn't remember, which is somehow related to the horror. For example, he could have been involved in a murder at the restaurant in a past life, and now the spirits are coming back to haunt him. Also, the customers could be strange, like they are not really human but some sort of otherworldly beings just pretending to be normal diners.
One possible element is the sudden and terrifying hallucinations. People on bad 'ecstasy' might see grotesque monsters or distorted versions of people around them.