Langis at tubig (1980)

After his secret crush, Connie (Vilma Santos) discovers her boyfriend is married, Bobby (Dindo Fernando) steals her away and gives her the perfect marriage. However, when Bobby accepts a job in the province of Albay, he falls for the lovely local girl Pilar (Amy Austria) and finds himself flirting with bigamy. And there's a vampire attack when you least expect it.