I was a huge fan of the "Kolchak: The Night Stalker" series on TV when I was a kid back in the 70's. So when I found this book, I was, of course intrigued. Add to that the fact that it brings in HP Lovecraft's "Cthulhu Mythos" -- my favorite RPG -- and I was sold. Originally, I thought I was getting a role-playing supplement, and after that first flash of disappointment (what could be better than roleplaying Kolchak up against mighty Cthulhu?), I continued to read -- I could almost hear Darren McGavin's and Simon Oakland's ("Tony Vicenzo") voices during much of the early part of the book. It was an awesome tour de force, and very much in keeping with the spirit of the movies Night Stalker and Night Strangler, and the best of the Night Stalker shows. I'd cheerfully buy any more of these if they exist or are being written. This was one of the best $4.00 buys I've made in years! My only regret is that it wasn't substantially longer!
Doing a little research, I discovered that Moonstone has been working this stuff since 2007. Well good for them! It's a great franchise, and it's a terrible pity we'll never see another new Night Stalker episode from Darren and Simon and the gang.