This was just... meh. The premise sounded so promising too: abandoned warehouse, gruesome murder, psychic investigators, but the end result was just so... boring.
How can you make a psychic murder investigation boring, you ask me? Well, let's see.
The characters are mere caricatures with no personality. The story is full of exposition. It's the worst case of tell, not show I've seen in a while. First we get to listen to an interrogation about how the security guard died. Then we listen to one of the character going over the whole backstory of the building and the murders that happened there before. By the time that's over, we are 3/4 into the short story and the characters haven't even moved inside the building yet. Then we get to listen in details to their elaborate plan to lure out the entity... By the time the action, as it is in this story, started, I was seriously tempted to take a nap.
And since when do paranormal investigators also act as paranormal exterminators? They seemed woefully unprepared for that role, which made this whole premise even more ridiculous. Sure, let's send 2 psychics and a norm to neutralize a monster that killed over 100 people over the years. Without doing any proper research, without knowing what it is, how it manifests, and how to stop it. Sounds a bit weird for a company that, according to the story, specializes in protecting people from such "haunted" places.
Yup, I won't recommend this.