Hi. My name is Alexis Hembree, and I'm a cop. My partner and I are good at our jobs, except we don't tend to work what others would call a normal beat. For some reason we draw evil to us like flies to sugar. Sometimes there are things in this world we can't explain or anticipate. But when they cross that line between their existence and ours, when they show up, we have to deal with them as best we can. Some cops fight criminals. We fight something that never should have existed.