Mr. Vampire IV, also known as Mr. Vampire Saga Four (Chinese: 殭屍叔叔) is a 1988 Hong Kong comedy horror film directed by Ricky Lau and produced by Sammo Hung and Jessica Chan.

Mr. Vampire and its sequels were released as part of the jiangshi cinematic boom in Hong Kong during the 1980s.

During a thunderstorm that night, rainwater washes away the magical charms on the coffin and the vampire breaks out, becoming more powerful after being struck by a bolt of lightning.

Taoist Crane remains behind to hold off the vampire while the prince and his attendant flee towards the houses.

At this critical moment, Four-eyed and Yat-yau both decide to put aside their differences and focus on destroying the vampires.