Juliana Soler is a young woman with low self-esteem and an ugly appearance who obtains a magic mirror from her aunt Mercedes, which allows her to live a double life. By day, she becomes Maritza Ferrer, a beautiful and confident woman. As night falls, she returns to her normal appearance. Under the identity of Maritza, she goes to work at the Mutti Cosmetics company, where she falls in love with the owner's adoptive son, Marcos. She must face the fearsome stepmother Bárbara and her cousin Xiomara, who, together with his friend Alberto, will make her life unbearable. Juliana's mother, Regina, keeps a secret with the owner of the company, Gabriel Mutti, that will change her daughter's life forever.