In this Hong Kong/American production, a snake-worshiping cult put a curse on the grounds of a construction site so thousands of deadly snakes come out of nowhere and attack everybody. As usual in movies, the snakes seem to be able to kill people instantly just by contact. One thing I've learned in many years of watching movies is that killer snakes always go for women who are taking a bubble bath. That's the first thing they look for. This movie gets extra credit for the number of snakes they used and for their speed. These snakes move ten times faster than the typical movie killer snake. They didn't refrigerate these guys before hand. Many of them were real, but there are plenty of cheezy rubber snakes hanging from railings.
I have not been able to find and watch the entire movie yet, and the movie clips have been taken down from YouTube. So in the meantime, check out a great illustrated review with a video trailer that lets you see Eartha Kitt as the Snake Priestess and hear her evil laughter on Daily Grindhouse web site.