Quidam (pronounced "key-DAHM"; ) means "a certain one/thing" or "anonymous passerby" in Classical Latin, and is the ninth show produced and performed by Cirque du Soleil.The entire show is imagined by a young girl, named Zoe, a sad and forlorn girl who is alienated and ignored by her parents. She dreams up the whimsical world of Quidam in an attempt to escape her sadness.The title refers to the feature character, best described as a giant Headless Horseman sans horse, carrying an umbrella and a