I mentioned this series in passing in another thread, but I figured it would be good to start a thread on this series.

So, repairman jack is a character from a series known as the "Adversary Cycle", starting with a fairly well known horror book - The Keep.

The repairman jack series is somewhat pulpy, anti-hero (go figure), supernatural, detective story that is, on occasion, very violent and later books in the series have a strong horror element (as the story merges with the adversary cycle books).

The plot of the first novel -
Quote Originally Posted by The Tomb
Much to the chagrin of his girlfriend, Gia, Repairman Jack doesn't deal with electronic appliances--he fixes situations for people, situations that usually involve putting himself in deadly danger. His latest project is recovering a stolen necklace, which carries with it an ancient curse that may unleash a horde of Bengali demons. Jack is used to danger, but this time Gia's daughter Vicky is threatened. Can Jack overcome the curse of the yellow necklace and bring Vicky safely back home?
sounds... well, cheesy. But it's not. It's well worth (IMHO) the 2-3 hours of time you'd spend reading it.

Amazon recommended it about a year ago. I finally bought it and read it while on a flight last xmas. When I arrived at my destination, I immediately bought the other 14 (!!!) and read them all by the time I returned home 2 weeks later.