The CW series Supernatural was known for its horror-filled narratives that left audiences on the edge of their seats. However, as the show progressed, it became less about the scares and more about serialized plotlines. One of the scariest moments in the show was in Season 4's episode titled "Family Remains," where Sam and Dean investigate a haunted house that turns out to be inhabited by an inbred family of killers.

The twist that the threat was human and not paranormal is what made the episode particularly terrifying. This unexpected turn is what made the episode a standout among the show's many scary moments.