Dracula Sucks (1978)

A hardcore version of Bram Stoker's novel and 1931's version, it takes place around an institution where patients are acting oddly and are being found with bite marks in their necks. Professor Van Helsing believes it to be the work of vampires and just when things r bad, it gets worse with the arrival of Count Dracula and this time he ain't aiming for the necks.