When Lana Adalian arrives in Las Vegas to visit her sister Christina, she sees her sister through the window laying on the floor and her nephew Joey in the cradle, and calls the police. Catherine and Sara meet Capt. Brass at the crime scene and they soon find that it was staged to look like a suicide. In the autopsy, Dr. Robbins finds that Christina was virgin and the owner of the weapon she used, Duane McWane, who tells that he gave the weapon to Rita Day. She says that she lost the gun in a poker game to a man called Cy, with a large mole between the eyes. When they find that Joey is not the biological son of Christina, they shift their investigation to another direction. Meanwhile, Grissom is summoned by Ecklie and Undersheriff Jeffrey McKeen that ask him to go to court to hear the testimony of the independent entomologist Mark Thayer. He will present proves that Preston Breckman has not killed McKeen's goddaughter Joanna Whitman based on an experiment with flies questioning the number of days that Joanna was dead that was crucial for the trial of Breckman.
"Secrets & Flies" is another great episode of "CSI", with two engaging segments. Grissom's one shows his knowledge to resolve a complicated scam using his skills in insects. The other segment, with the rest of the team, is interesting with a surprising discovery in the end. My vote is eight.
Title (Brazil): "Secrets & Flies"