People are disappearing, and there are no clues.
No bodies thrown behind dumpsters, no psychotic kidnappers, not even a sliver of evidence—they vanish into thin air. The authorities are stumped because nothing adds up, they think it's some sort of mass kidnapping, but it isn't.
The truth is, people are wandering off into another realm. It sounds unbelievable doesn't it? But It's as simple as that. There are no convoluted schemes or holdups, no threats, no nothing. They just walk into a door and never come back, or sometimes they do, but they're never the same and they sputter all sorts of things, things that don't make sense at all. They talk about wolves in overcoats and streets made of cheese.
The line between our world and a magical realm that exists parallel to our own is blurring. The worlds are bleeding into each other, and the ripples in reality are starting to become apparent. If this is not stopped then the world will end.