Joaquin (Leonardo Sbaraglia) is a disabled person with paralyzed legs and has to use a wheelchair all day. However, Joaquin is also an experienced engineer, proficient in mechanics, and has hearing several times more sensitive than ordinary people. With his outstanding professional knowledge, Joaquin arranges his life in an orderly manner. One day, a beautiful single mother, Bota (Clara Lago) brought her 6-year-old daughter Betty (Uma Salduende) to stay. The arrival of the mother and son made Joaquin's originally pale life vivid and lively. By chance, Joaquin learned that there was a group of robbers living in his house, and they were planning to use the method of digging tunnels under the house to implement their plan to rob a bank.