Synopsis by Josh Ralske
Now that they've seen the killer (Antonio Birabent) (though not clearly) on his webcam, Laura (Paola Krum) points out that he's young, and could have been a student when the original incident took place. With his badge restored, Renzo (Julio Chávez) decides not to tell Jiménez (Luis Luque) about Lansky's death. Another epitaph is revealed, reading, "Here lies he who ignored that misfortune answers at all hours." Laura eventually surmises that the next victim will be the person who called the police on that fateful day. When Lansky's head is found at the school by a student, Jiménez threatens to take Renzo off the case, just as he had feared. But Jiménez relents, giving Renzo one more chance to catch the killer. Martin (David Masajnik) and Renzo learn that the school's principal, Feldman (Norman Briski), is the one who phoned the police that day, and that he's returning from Chile on a flight that afternoon. The two cops race to the airport in a desperate effort to reach Feldman before the killer does.