Lino has been a real unlucky fellow since his childhood. And even when he finally gets a badly paid job as an entertainer with a homemade cat costume, everything turns against him again: the children attack him and his landlady puts him out on the street. In his desperation and with the firm resolution that his life must finally change, he seeks help from the magician Don León, who promises solutions for all problems. But his elixir instead turns him completely into a cat!