Proof is John Prufrock. He's a talking Bigfoot, wears a suit and tie and works for The Lodge, a clandestine agency funded by both the US and Canadian governments to investigate reports of 'cryptids' or sightings of strange animals and if true, bring such animals back to The Lodge before anyone else sees them. It's for both the creature's and the human population's sake. Think X-Files but set in Washington state and Mulder is a 9-foot ape (or think Hellboy but without the Nazis).
Sure, it's hardly original but I love these kind of stories. In this first trade collection, Goatsucker, Proof gets a new human partner, Ginger Brown, who is transferred from the FBI to The Lodge when she is rescued in a hostage situation by a Golem in New York's Diamond District. Oh, it'll all make sense once you read the book! Trust me. In this first trade the principal players are introduced (other than Proof and Ginger, there's the Lodge's boss, Leander Wight) and then it's off to Minnesota to investigate an alleged sighting of the Chupacabra or 'Mexican Bigfoot'.
This Chupacabra doesn't suck goats, it sucks out the insides of humans and puts on their skin over its own, essentially passing itself off as human because it wants, for some reason, to kill Proof. We are not told why. Even the monster doesn't remember why. Being a first volume of an ongoing series, Proof naturally raises a lot of questions and hardly answering any of them but it is intriguing enough for me to go out and look for the second trade collection. I hope I'll get some answers then. I mean, Proof is an English speaking ape who works for the government. How the hell did that happen? Where's the backstory there? And who is Mi-Chen-Po? What's up with the Golem in New York? Answers, guys! Give me some! Yeah, I'm hooked, damn you.