Hex

Constantly mistreated by her cruel husband, the frail Chan Sau Ying awaits certain death from tuberculosis. The new servant girl, Yi Wah takes pity on her mistress’ plight and the pair proceed to drown him one evening. They dump his body in a near-by pond but Sau Ying believes that the man’s bloated corpse has risen from the bog to seek vengeance...After making successful thrillers, action films, and comedies, director Kuei Chih Hung put his first "Hex" on the audience. This eerie, frightening, supernatural, mystery thriller was so effective it led to "Hex Versus Witchcraft" and "Hex After Hex". What starts as an Asian variation of the classic French suspense film "Les Diabolique" becomes an exercise in fervid and frightening Hong Kong horror as one ghost after another appears to wreak havoc, insanity, and death...
(Source: Letterboxd & HongKongCinemagic)