Celeste has pulled up in her pink Shasta trailer, aka mobile art studio, to the Sevier County Fair in the mountains of eastern Tennessee to sell her paintings. A highlight of the fair promises to be the celebrity impersonation contest. But the low point is when Celeste and her floppy-eared white Chihuahua Van (short for Van Gogh) find an Elvis impersonator in his trailer doing a great impression of a corpse, clutching a doughnut in his hand.

Seeking a vision to solve the crime, Celeste paints her own Elvis portrait--and suddenly the ghost of the Elvis impersonator appears. They say fools rush in, but with the help of this spirit, Celeste sets out to find the real killer among all the fake celebrities. It's now or never, because there won't be time to tell the killer: "Don't be cruel."