David Phillips reluctantly leaves his pregnant wife Amy to attend his fifteen-year high-school reunion to satisfy her wish. Soon David notes that the bubbles falling from the ceiling have blood and he goes to the room where the bubble tray and the machine are. He finds the body of the former queen Becca Sabin on a table and her blood dropping in the tray. The CSIs arrive at the crime scene to process the place and collect evidence. Brass question her husband, Grady Foster, who tells him that he was drinking whisky at his table during the night. Nick finds evidence of Kelly Nivens on the copy machine and Russell interviews her. She tells him that she stopped the queen of gossips from making copies of cards with secrets of the participants, but she never killed Becca. She tells also that Grady is the therapist of many classmates and probably told Becca their secrets. Kelly has an alibi and is dismissed. Grady claims doctor-patient confidentiality to deny giving the list of names to the CSIs. Nick accesses a surveillance camera of a gas station nearby Grady's office and they see Becca breaking into and stealing some client files. Now Greg and Morgan need to return to the school to look for new evidence.
"Dead of the Class" is an episode of "CSI" based on David Phillips, showing hie classmates from high-school and his wife. The plot has several twists as usual, and a surprising conclusion with the identity of the killer. There is a very funny scene, when Becca talks to David during the autopsy, making fun of him. My vote is seven.
Title (Brazil): "Dead of the Class"