A serial killer who preys on women haunts Chicago, and Kolchak comes to believe that the culprit is the original Jack the Ripper, a seemingly immortal villain who has slain women in many cities over the last century.

Kolchak witnesses a murder committed by a man he swears he's seen before - lying dead in the morgue.

A bizarre force that generates a massive electromagnetic field and sucks the bone marrow out of living creatures sweeps through Chicago, killing randomly. Kolchak realizes he's onto a huge story - if he can find out exactly what this for...

When devil worshippers are suspected of several murders, Kolchak believes that a vampire is to blame, so he tries to hunt it down and stop it.

When cruise passengers and crew members are found mauled under the light of the full moon, Kolchak suspects he's found a much bigger story involving a werewolf. Eric Braeden and Dick Gautier guest star.

A series of mysterious deaths plagues the life of conductor Ryder Bond, and as Kolchak investigates, he discovers a spirit who is trying to take over the musician's body. Fred Beir guest stars.