El desconocido

Carlos is a man who works as an executive in a bank. He lives his life quietly and routinely, bringing his children to school, although his wife often normally do, so it is unusual to see him do it. On the way to his children' school, he receives a call from a stranger, the problem is that it seems to know everything about him but also the unknown notifies him that he have a bomb under the seat and threatens him, telling him to collect a high amount of money, if he really want to survive, or otherwise, he shall die by the bomb.