A ghostly and deadly dinner party, which at first turns out to be an elaborate staging of a new play for the benefit of a Broadway producer, becomes a true mystery when the players start to go missing.
After a series of murders, a man finds out that his mother was bitten by a vampire bat during her pregnancy, and he believes that he may be the vampire committing the murders.
A pair of detectives investigates the murder of an elderly millionaire who was the target of blackmail and death threats and find that there is no shortage of suspects, many of them in the victim's own family.
