Though it sounds incredible, little Ulises with only nine years old, from one day to another grows an enourmous mustache. This situation, appearing to be ordinary, starts a series of extraordinary events for him, his mother and his best friends. From this moment onward with the company of a bunch of very curious characters they will have to face this hairy adventure.

After the dead of his mother, Daniel is put under the care of his aunt Elizabeth, a foreign woman with a severe character, who subjects the child to multiple abuses and psychological torture.

This is the story of a dysfunctional family in which each member engages in an illicit activity, but they don't know this about each other. One day, the Contreras family witnesses a police operation outside the building in which they live and, believing that they are coming for them, each member decides to hide incriminating objects in their room.

Martin, a child of the 21st century, through his telescope discovers Doctor Funes, the inventor of a formula to become young again and the envy of Doctor Moebius, who also wants to regain his youth. Martin goes to visit old Funes, but instead finds twelve year old Pablo, whom he shelters in his house without telling his parents what is going on. Pablo turns the biology teacher into a baby girl with a pacifier, and a group of the elderly into children. Martin dreams of a world of only children, but Doctor Moebius steals the formula, not knowing that its effects are unpredictable.

Angel is an honest accountant that endeavors to do his work. Still, he gets fired. With a family to maintain and no job in sight, Angel sets aside his values and gets entangled with a third rate gang of thieves where he finds friendship, loyalty, self-esteem but no money. If his foray into the criminal underworld doesn't help his family, Angel will have to find another way to survive.