Kolchak: The Night Stalker

Young swinging patrons of an exclusive dating service are turning up, dead of old age. The police don't believe they are the same persons, but Kolchak investigates and discovers that the head of the dating service is actually Helen of Troy, who sacrifices perfect young victims to Hecate, her patron goddess, in return for eternal youth and beauty. The fact that Helen is unaware one of the victims had a glass eye and lied about it on their form proves vital to Kolchak when he accidentally dons one of the rings that lets Helen sacrifice her victims in the appropriate manner.

Physically fit specimens (an Air Force pilot, a football player, a cop) are all being targeted for a grisly death: their hearts are being cut from their chests while they're still alive, with a dull blade, on higher and higher flights of steps. Kolchak investigates and spots a strange feathered creature near the scene of one of the murders. He finds out that an ancient Aztec cult is trying to resurrect their ancient god, Nanautzin, the Lord of the Smoking Mirror. Since his destruction at the hands of the Conquistadores 520 years ago (the Aztec millennia), his worshippers must sacrifice the hearts of five worthy victims every 52 years. Upon the completion of the final cycle, Nanautzin will be restored to life. However, the final death must be a ""perfect sacrifice"": a willing victim who is given his every wish for a year before his final death. Pepe, a box boy, is the ""perfect sacrifice"" and Carl must track him to the highest staircase in Chicago and convince him to back out of the sacrifice.

The strange disappearance of an antique motorcycle is the first indication of trouble. What follows are a rash of murders where each victim is decapitated with superhuman force by what witnesses report is a headless motorcyclist. As Kolchak investigates, he discovers that the victims were all members of a cycle gang back in the 50's. A prank they played on a rival gang member, Harold ""Swordsman"" Baker, resulted in his unintentional decapitation. Baker's ghost killed several of their gang back in the 50's until his head was reunited with the rest of his corpse. However, the cemetary where Baker was interred was dug up and his head and body separated once more. Now, Kolchak must reunite the head and body once more before the headless cyclist finishes off the gang.

In a oil company's laboratory, the air conditioning fails, and a primate creature attacks a scientist. The creature, and others like it, begin going on a rampage throughout Chicago. The oil company was experimenting with cell samples brought back from the Antarctic, which began growing when exposed to heat. Now these bizarre missing links are wrecking havoc. Despite the government cover-up, Kolchak investigates, and must track the creatures down to their lair beneath the old nuclear-research labs of the 50's.

Kolchak’s investigation of a series of grisly deaths in a once-plush neighborhood, leads him to a creature who lures its victims by making itself appear to them as someone they know and trust.

A series of apparently unrelated deaths involve each victim being crushed to death, and covered in wet, slimy Spanish Moss. Upon investigation, Kolchak discovers that each victim was related to Paul Langois, a hot-tempered Cajun. However, Langois has an iron-clad alibi: he's been the subject of a sleep experiment and been kept asleep for several weeks. Eventual, Carl realizes that somehow Langois' sleep state has caused him to manifest a subconscious ""boogey-man"" from the Cajun bayou: Peremalfait, a huge creature covered in Spanish Moss that crushes the life right out of you. Peremalfait ""kills"" Langois to prevent him from being woken up, and Kolchak must travel into the sewers of Chicago to kill Peremalfait with the only thing that can destroy it: a spear made out of bayou gum wood.

Kolchak discovers a young rising politician, has made a deal with the Devil to murder off his competition through incidents made to look like accidents.

Bernhardt Stieglitz, a NATO soldier bitten by a wolf, leaves a string of murder victims behind him. When Vincenzo is forced to abort his long-awaited vacation and report on the last cruise of an ocean liner, the USS Hanover, Carl takes his place, only to find that Stieglitz is one of the passengers on board...and the full moon is rising. Trapped aboard the liner, Kolchak must use a shotgun and silver buckshot to kill the creature once and for all.

A bizarre alien presence invisibly sweeps through Chicago, killing a petty thief and a UFO nut. The alien or aliens have the strength of a hurricane, generate a massive electromagnetic field, steal lead and electronic equipment, and suck the bone marrow out of humans and animals alike. Kolchak must track the alien(s) from an electronics warehouse to an observatory to Lincoln Park and drive them off before they kill again. His camera seems to hold the key to the creatures' weakness, although initially Carl is wrong in guessing what the weakness is. Carl follows the aliens and manages to keep them from feeding on him before they depart once and for all.

A serial killer who preys on women haunts Chicago, and Kolchak comes to believe that the killer is in fact the original Jack the Ripper, a seemingly immortal killer who has killed women in many cities over the last century. The reporter must track the killer to the old house where he has taken up residence and put an end to his existence once and for all.