Nightmare in Blood (1978)
At a horror film convention in San Francisco, guests begin to vanish mysteriously. The shocking truth emerges: the esteemed guest of honor is an actual vampire, employing his minions to abduct attendees. To confront this menacing threat, a horror novelist, a devoted Sherlock Holmes enthusiast, and a determined Israeli Nazi hunter unite. Together, they must unravel the sinister plot and put an end to the vampire's reign of terror before the convention descends into chaos and horror.
