orologio en CB01 OFFICIAL. A subway station at night. A group of sixteen-year-olds is having a discussion. They are planning to enter a school and paint a graffiti. They argue with Cora, one of the group, for bringing along a boy she is going out with. The teenagers embark on a vandalism spree in the corridors of the empty school, setting off a night of turmoil and paranoia, of betrayal and violence.