After being run out of Las Vegas, Kolchak heads for Seattle and another reporting job with the local paper. It's not long before he is on the trail of another string of bizarre murders. It seems that every 21 years, for the past century, a killer kills a certain number of people, drains them of their blood and then disappears into the night. Kolchak is on his trail, but can he stop him?
Some college students manage to persuade the town's big businessman, A. J. Arno, to donate a computer to their college. When the problem- student, Dexter Riley, tries to fix the computer, he gets an electric shock and his brain turns to a computer; now he remembers everything he reads. Unfortunately, he also remembers information which was in the computer's memory, like Arno's illegal businesses..