Though Richard Kiel's first appearance as the Diablero is unintentionally hilarious, this episode does generate a few chills...but I like it more for the interactions at INS and Kolchak's attempts to manuever around the cops for information.
The monster-of-the-week is the Diablero, a vengeful Indian spirit doomed to roam the earth in search of a series of gems. He needs to kill several blue-bloods in Chicago to get them, and Kolchak gets intrigued when he sees an eight foot Indian survive a shootout with the cops and jump off a building to disappear.
Tony, Uptight and Miss Emily all shine in this hour (Tony in flannel pajamas waiting for Kolchak to come back to the office; Ron being suckered into believing the fake invitation; and Emily's yelp as Carl cannibalizes another phone book). These moments, along with some very dry humor at the crime scenes, keep the action moving along through what is ultimately a bland monster story. Whenever the monster has a specific set of victims, the suspense drops - I prefer "The Ripper" or "The Vampire," when the killer could strike anyone, anywhere.
The final showdown? Not too dazzling, but setting it in the top floor of an abandoned skyscraper was moody.