Lili is a princess who dreams of participating in a singing contest, however, she fears for the image of the royal family. Didi and Arthur help Lili, who hides her identity. However, Lili's cousin Lucélia wants to destroy Lili's plans.

"Kilas" (a Portuguese misrepresentation of the English word "killers") is the nickname of a petty con-man who gets involved with a deadly ring of spies.