Accurate description of how I reacted to the new Shadowhunters trailer
A yandere merformer takes a human as their child, the human is happy with the merformer. But some of the locals did not like the idea, the human ends up getting killed. Fast foward about a hundred years later, a human comes to the local area for some reason. They look like the human who died. The Merformer sees them, and is hell bent on having them.