This exorcism takes the form of an opera.
In the region called Gui Zhou (贵州), people put on masks; they dance and perform a ritual to banish devils, illness, and poor luck.
The ritual is called Nuo Xi (儺戲). It is performed in various regions at various times of year; now, at Gui Zhou, the performance takes place with the accompaniment of a single gong and a single drum. It is performed upon a single tract of land.
Nuo masks are fascinating and famous. Some are designed simply to scare away the devils, but others represent characters out of religious literature, like Sun Wukong (Monkey). The perfomances can last ten or twelve days, and often incorporate stories from classical Chinese texts, like The Three Kingdoms and Journey to the West.
Some more photos of the Gui Zhou Nuo Xi:
And finally, a video: