Director Lance Comfort lived on the fringes of British B-movies, with this effort being one of his last films. I found it on one of those old 20th Century Fox Midnite Movies double disks which are always so much fun.
Paul Baxter (William Sylvester, Gorgo) is on vacation with three friends who are all killed by Count Sinistre on All Soul’s Night. So he then does what you or I would — he heads back to England, finds a talisman belonging to the Satanic sucker and gets a whole bunch more of his friends killed.
Look for Tracy Reed (the mistress of General Buck in Dr. Strangelove), Carole Gray (Curse of the Fly), Victor Brooks (Cover Girl Killer) and Marianne Stone (Whoever Slew Auntie Roo? and the Carry On movies).
This is a rare modern vampire movie for the UK, so it has that going for it.