Lorenza is a successful flight attendant, who suddenly changes her life after the death of her sister Raymunda, since she leaves her son Emiliano under her charge. But Lorenza does not know how to care of a baby.
Lorenza is a victim of social media for having left Emiliano in the car. Juana, a social worker, seeks to take away the custody. In addition, she is reunited with Luis Enrique, her ex-boyfriend.
Lorenza and Valentina, end up in jail for driving with alcoholic breath, Luis Enrique pays their bail. Chayo, the nanny, is incompetent to care for Emiliano, so Lorenza decides to look for a new nanny.
Lorenza, Valentina and Chayo search in Raymunda's office for clues to find Emiliano's father. Lorenza dresses like her sister and manages to fool Luis Enrique.
Emiliano suffers from indigestion and Lorenza takes him to the hospital, although Chayo applies a millennial remedy. Lorenza doesn't believe in the remedy so she takes Emiliano and Chayo on one of the flights and creates tremendous chaos.
Continuing the search for Emiliano's father, Lorenza disguises herself as Raymunda to obtain the DNA of Lalo Wow, a tantric sex professor and possible candidate to be Emiliano's father.
Chayo cancels Lorenza to itake care of Emiliano, so she has to take him to a training session. When everything seems to be going well, Emiliano disappears and an entanglement is made in which Luis Enrique is involved.
Valentina notices Lorenza too bitter because of lack of sex, so she gives her a sex toy, but she will be freed better with Patricio, possible father of Emiliano.
Lorenza and Luis Enrique take Emiliano to an early stimulation course taught by La Cuquis. Luis Enrique is popular among moms, Lorenza gets jealous and they argue, but they end up together in bed.
Lorenza is feeling very bad for having slept with Luis Enrique and invites Lalo Wow on a date. Meanwhile, Juana Guadarrama prepares an unpleasant surprise to take custody of Emiliano.
Lorenza seeks as never before the biological father of Emiliano to give him custody of Emiliano, this is how she meets Manuel and she is sure that the DNA test this time will be positive.
Lorenza is so happy that everything is going well that she reconciles with Luis Enrique. The trial is held for the custody of Emiliano, Juana does another DNA test.