Single, hopeless, and still living with his mother in a dusty village somewhere in Argentina, the thirty-two-year-old locksmith, Zapa, receives a call from his boss to open a safe--and next thing he knows--he is handcuffed, and charged of theft. Framed and down on his luck, Zapa's miserable life will take a turn for the better, when a letter of recommendation from his uncle and former policeman, Ismael, opens a position in the Police Academy to become a corporal. During the days of his rigorous training, Zapa will also experience an irregular love affair; however, will he finally manage to take charge of his life as he works his way up in the West Buenos Aires Police Force?