Kolchak: The Night Stalker

Kolchak: The Night Stalker is an American television series that aired on ABC during the 1974–1975 season. The series followed wire service reporter Carl Kolchak (Darren McGavin) who investigates mysterious crimes with unlikely causes, particularly those involving the supernatural or science fiction, including fantastic creatures. The series was preceded by the two television movies, The Night Stalker (1972) and The Night Strangler (1973). Although the series lasted only a single season, it rapidly achieved cult status and has remained very popular in syndication.

Plot
A newspaper reporter investigates strange supernatural occurrences in Chicago.

1x08- Bad Medicine
A Native American legend materializes in Chicago, and Carl discovers it when he investigates the mysterious deaths of two wealthy society matrons who possessed priceless jewels. When the murders increase, Kolchak learns that the force at work is know as The Diablero, a being cursed to roam the Earth in search of valuable gems.