A Mafia don concocts a scheme to convince several Mobsters to meet abroad a bomb strapped yacht. There, they encounter a crew of gay men (including a man (played by Jackie Gayle) who's seizures make him believe he's the Captain) and an eager female crew member who mistaken them for movie producers.
When a quiet group of pensioners learn that their homes are to be torn down to make way for a block of flats, they decide to take action. What starts as an attempt to discourage the developers soon escalates into wholesale murder of both the developers and the construction workers.
In 1830, the Karnstein heirs use the blood of an innocent to bring forth the evil that is the beautiful Mircalla - or as she was in 1710, Carmilla. The nearby Finishing School offers rich pickings not only in in the blood of nubile young ladies but also with the headmaster who is desperate to become Mircalla's disciple, and the equally besotted and even more foolish author Richard Lestrange.