Dead Alive (1992)
Alternate Title: Braindead
In 1957 a zoologist traps a rare rat monkey on Skull Island and brings it back to New Zealand with the local Maoris hot on his trail. Later, a young man falls in love and takes the young woman to the zoo. His overbearing and disapproving mother follows them and gets bitten by the rat monkey. The monkey's bite turns her into a zombie, and her doting son has to keep her (and the others she's bitten) tranquilized in the basement while trying to preserve his love life.