Kolchak finds a strong resemblance between the murders of several Chicago women and killings by Jack the Ripper in the 1800s.

Kolchak witnesses a murder by the intimidating enforcer of a gangster, who he has previously seen on a morgue slab.

Kolchak suspects extraterrestrial involvement when a series of electronic-equipment thefts is linked to several bizarre murders.

Kolchak theorises a vampire is behind a string of deaths from Las Vegas to Los Angeles, in which bodies were left drained of blood.

Kolchak suspects a werewolf may be among the passengers aboard a luxury liner when a passenger and three crewmen are mauled to death.

The fiery deaths of three associates of a symphony conductor lead Kolchak into a confrontation with a supernatural force.